The problem of evil is the question of how to reconcile the existence of evil with an omnipotent, omnibenevolent and omniscient God (see theism). An argument from evil
 claims that because evil exists, either God does not exist or does not 
have all three of those properties. Attempts to show the contrary have 
traditionally been discussed under the heading of theodicy. Besides philosophy of religion, the problem of evil is also important to the field of theology and ethics.
The problem of evil is often formulated in two forms: the logical problem of evil and the evidential problem of evil. The logical form of the argument tries to show a logical impossibility in the coexistence of God and evil, while the evidential form tries to show that given the evil in the world, it is improbable that there is an omnipotent, omniscient, and wholly good God. The problem of evil has been extended to non-human life forms, to include animal suffering from natural evils and human cruelty against them.
Responses to various versions of the problem of evil, meanwhile, come in three forms: refutations, defenses, and theodicies. A wide range of responses have been made against these arguments. There are also many discussions of evil and associated problems in other philosophical fields, such as secular ethics, and evolutionary ethics. But as usually understood, the "problem of evil" is posed in a theological context.
The problem of evil acutely applies to monotheistic religions such as Christianity, Islam, and Judaism that believe in a monotheistic God who is omnipotent, omniscient and omnibenevolent; but the question of "why does evil exist?" has also been studied in religions that are non-theistic or polytheistic, such as Buddhism, Hinduism, and Jainism.
The problem of evil is often formulated in two forms: the logical problem of evil and the evidential problem of evil. The logical form of the argument tries to show a logical impossibility in the coexistence of God and evil, while the evidential form tries to show that given the evil in the world, it is improbable that there is an omnipotent, omniscient, and wholly good God. The problem of evil has been extended to non-human life forms, to include animal suffering from natural evils and human cruelty against them.
Responses to various versions of the problem of evil, meanwhile, come in three forms: refutations, defenses, and theodicies. A wide range of responses have been made against these arguments. There are also many discussions of evil and associated problems in other philosophical fields, such as secular ethics, and evolutionary ethics. But as usually understood, the "problem of evil" is posed in a theological context.
The problem of evil acutely applies to monotheistic religions such as Christianity, Islam, and Judaism that believe in a monotheistic God who is omnipotent, omniscient and omnibenevolent; but the question of "why does evil exist?" has also been studied in religions that are non-theistic or polytheistic, such as Buddhism, Hinduism, and Jainism.
Formulation and detailed arguments
The problem of evil refers to the challenge of reconciling belief in 
an omniscient, omnipotent, and omnibenevolent God, with the existence of
 evil and suffering in the world. The problem may be described either experientially or theoretically.
 The experiential problem is the difficulty in believing in a concept of
 a loving God when confronted by suffering or evil in the real world, 
such as from epidemics, or wars, or murder, or rape or terror attacks 
wherein innocent children, women, men or a loved one becomes a victim.
 The problem of evil is also a theoretical one, usually described and 
studied by religion scholars in two varieties: the logical problem and 
the evidential problem.
Logical problem of evil
Originating with Greek philosopher Epicurus, the logical argument from evil is as follows:
- If an omnipotent, omnibenevolent and omniscient god exists, then evil does not.
 - There is evil in the world.
 - Therefore, an omnipotent, omnibenevolent and omniscient god does not exist.
 
This argument is of the form modus tollens, and is logically valid:
 If its premises are true, the conclusion follows of necessity.  To show
 that the first premise is plausible, subsequent versions tend to expand
 on it, such as this modern example:
- God exists.
 - God is omnipotent, omnibenevolent and omniscient.
 - An omnipotent being has the power to prevent that evil from coming into existence.
 - An omnibenevolent being would want to prevent all evils.
 - An omniscient being knows every way in which evils can come into existence, and knows every way in which those evils could be prevented.
 - A being who knows every way in which an evil can come into existence, who is able to prevent that evil from coming into existence, and who wants to do so, would prevent the existence of that evil.
 - If there exists an omnipotent, omnibenevolent and omniscient God, then no evil exists.
 - Evil exists (logical contradiction).
 
Both of these arguments are understood to be presenting two forms of the logical problem of evil. They attempt to show that the assumed propositions lead to a logical contradiction
 and therefore cannot all be correct. Most philosophical debate has 
focused on the propositions stating that God cannot exist with, or would
 want to prevent, all evils (premises 3 and 6), with defenders of theism
 (for example, Leibniz) arguing that God could very well exist with and 
allow evil in order to achieve a greater good. 
If God lacks any one of these qualities—omniscience, omnipotence,
 or omnibenevolence—then the logical problem of evil can be resolved. Process theology and open theism are other positions that limit God's omnipotence and/or omniscience (as defined in traditional theology). Dystheism is the belief that God is not wholly good.
Evidential problem of evil
William L. Rowe's example of natural evil:
 "In some distant forest lightning strikes a dead tree, resulting in a 
forest fire. In the fire a fawn is trapped, horribly burned, and lies in
 terrible agony for several days before death relieves its suffering." Rowe also cites the example of human evil where an innocent child is a victim of violence and thereby suffers.
The evidential problem of evil (also referred to as the 
probabilistic or inductive version of the problem) seeks to show that 
the existence of evil, although logically consistent with the existence 
of God, counts against or lowers the probability
 of the truth of theism. As an example, a critic of Plantinga's idea of 
"a mighty nonhuman spirit" causing natural evils may concede that the 
existence of such a being is not logically impossible but argue that due
 to lacking scientific evidence for its existence this is very unlikely 
and thus it is an unconvincing explanation for the presence of natural 
evils. Both absolute versions and relative versions of the evidential 
problems of evil are presented below.
A version by William L. Rowe:
- There exist instances of intense suffering which an omnipotent, omniscient being could have prevented without thereby losing some greater good or permitting some evil equally bad or worse.
 - An omniscient, wholly good being would prevent the occurrence of any intense suffering it could, unless it could not do so without thereby losing some greater good or permitting some evil equally bad or worse.
 - (Therefore) There does not exist an omnipotent, omniscient, wholly good being.
 
Another by Paul Draper:
- Gratuitous evils exist.
 - The hypothesis of indifference, i.e., that if there are supernatural beings they are indifferent to gratuitous evils, is a better explanation for (1) than theism.
 - Therefore, evidence prefers that no god, as commonly understood by theists, exists.
 
Problem of evil and animal suffering
The problem of evil has also been extended beyond human suffering, to
 include suffering of animals from cruelty, disease and evil.
 One version of this problem includes animal suffering from natural 
evil, such as the violence and fear faced by animals from predators, 
natural disasters, over the history of evolution. This is also referred to as the Darwinian problem of evil, after Charles Darwin who expressed it as follows:
'the sufferings of millions of the lower animals throughout almost endless time' are apparently irreconcilable with the existence of a creator of 'unbounded' goodness.
— Charles Darwin, 1856
The second version of the problem of evil applied to animals, and 
avoidable suffering experienced by them, is one caused by some human 
beings, such as from animal cruelty or when they are shot or 
slaughtered. This version of the problem of evil has been used by 
scholars including John Hick
 to counter the responses and defenses to the problem of evil such as 
suffering being a means to perfect the morals and greater good because 
animals are innocent, helpless, amoral but sentient victims. Scholar Michael Almeida said this was "perhaps the most serious and difficult" version of the problem of evil. The problem of evil in the context of animal suffering, states Almeida, can be stated as:
- God is omnipotent, omniscient and wholly good.
 - The evil of extensive animal suffering exists.
 - Necessarily, God can actualize an evolutionary perfect world.
 - Necessarily, God can actualize an evolutionary perfect world only if God does actualize an evolutionary perfect world.
 - Necessarily, God actualized an evolutionary perfect world.
 - If #1 is true then either #2 or #5 is true, but not both. This is a contradiction, so #1 is not true.
 
Responses, defences and theodicies
Responses to the problem of evil have occasionally been classified as defences or theodicies; however, authors disagree on the exact definitions. Generally, a defense
 against the problem of evil may refer to attempts to defuse the logical
 problem of evil by showing that there is no logical incompatibility 
between the existence of evil and the existence of God. This task does 
not require the identification of a plausible explanation of evil, and 
is successful if the explanation provided shows that the existence of 
God and the existence of evil are logically compatible. It need not even
 be true, since a false though coherent explanation would be sufficient 
to show logical compatibility.
A theodicy,
 on the other hand, is more ambitious, since it attempts to provide a 
plausible justification—a morally or philosophically sufficient 
reason—for the existence of evil and thereby rebut the "evidential" 
argument from evil. Richard Swinburne
 maintains that it does not make sense to assume there are greater goods
 that justify the evil's presence in the world unless we know what they 
are—without knowledge of what the greater goods could be, one cannot 
have a successful theodicy. Thus, some authors see arguments appealing to demons or the fall of man as indeed logically possible, but not very plausible given our knowledge about the world, and so see those arguments as providing defenses but not good theodicies.
The above argument is set against numerous versions of the problem of evil that have been formulated. These versions have included philosophical and theological formulations.
Skeptical theism
Skeptical theism defends the problem of evil by asserting that God 
allows an evil to happen in order to prevent a greater evil or to 
encourage a response that will lead to a greater good.
 Thus a rape or a murder of an innocent child is defended as having a 
God's purpose that a human being may not comprehend, but which may lead 
to lesser evil or greater good.
 This is called skeptical theism because the argument aims to encourage 
self-skepticism, either by trying to rationalize God's possible hidden 
motives, or by trying to explain it as a limitation of human ability to 
know.
 The greater good defense is more often argued in religious studies in 
response to the evidential version of the problem of evil, while the free will defense is usually discussed in the context of the logical version.
 Most scholars criticize the skeptical theism defense as "devaluing the 
suffering" and not addressing the premise that God is all-benevolent and
 should be able to stop all suffering and evil, rather than play a 
balancing act.
"Greater good" responses
The omnipotence paradoxes,
 where evil persists in the presence of an all powerful God, raise 
questions as to the nature of God's omnipotence. There is the further 
question of how an interference would negate and subjugate the concept 
of free will, or in other words result in a totalitarian system that 
creates a lack of freedom. Some solutions propose that omnipotence does 
not require the ability to actualize the logically impossible. "Greater 
good" responses to the problem make use of this insight by arguing for 
the existence of goods of great value which God cannot actualize without
 also permitting evil, and thus that there are evils he cannot be 
expected to prevent despite being omnipotent. Among the most popular 
versions of the "greater good" response are appeals to the apologetics 
of free will. Theologians will argue that since no one can fully 
understand God's ultimate plan, no one can assume that evil actions do 
not have some sort of greater purpose. Therefore, they say nature of 
evil has a necessary role to play in God's plan for a better world.
Free will
The problem of evil is sometimes explained as a consequence of free will, an ability granted by God.
 Free will is both a source of good and of evil, and with free will also
 comes the potential for abuse, as when individuals act immorally. 
People with free will "decide to cause suffering and act in other evil 
ways", states Boyd, and it is they who make that choice, not God.
 Further, the free will argument asserts that it would be logically 
inconsistent for God to prevent evil by coercion and curtailing free 
will, because that would no longer be free will.
Critics of the free will response have questioned whether it 
accounts for the degree of evil seen in this world. One point in this 
regard is that while the value of free will may be thought sufficient to
 counterbalance minor evils, it is less obvious that it outweighs the 
negative attributes of evils such as rape and murder. Particularly 
egregious cases known as horrendous evils, which "[constitute] prima facie
 reason to doubt whether the participant’s life could (given their 
inclusion in it) be a great good to him/her on the whole," have been the
 focus of recent work in the problem of evil.
 Another point is that those actions of free beings which bring about 
evil very often diminish the freedom of those who suffer the evil; for 
example the murder of a young child prevents the child from ever 
exercising their free will. In such a case the freedom of an innocent 
child is pitted against the freedom of the evil-doer, it is not clear 
why God would remain unresponsive and passive.
Another criticism is that the potential for evil inherent in free
 will may be limited by means which do not impinge on that free will. 
God could accomplish this by making moral actions especially 
pleasurable, or evil action and suffering impossible by allowing free 
will but not allowing the ability to enact evil or impose suffering. Supporters of the free will explanation state that that would no longer be free will.
 Critics respond that this view seems to imply it would be similarly 
wrong to try to reduce suffering and evil in these ways, a position 
which few would advocate.
A third challenge to the free will defence is natural evil, which is the result of natural causes (e.g. a child suffering from a disease, mass casualties from a volcano).
 The "natural evil" criticism posits that even if for some reason an 
all-powerful and all-benevolent God tolerated evil human actions in 
order to allow free will, such a God would not be expected to also 
tolerate natural evils because they have no apparent connection to free 
will.
Advocates of the free will response to evil propose various explanations of natural evils. Alvin Plantinga, following Augustine of Hippo, and others have argued that natural evils are caused by the free choices of supernatural beings such as demons. Others have argued
- • that natural evils are the result of the fall of man, which corrupted the perfect world created by God or
 - • that natural evils are the result of natural laws or
 - • that natural evils provide us with a knowledge of evil which makes our free choices more significant than they would otherwise be, and so our free will more valuable or
 - • that natural evils are a mechanism of divine punishment for moral evils that humans have committed, and so the natural evil is justified.
 
Most scholars agree that Plantinga's free will of human and non-human
 spirits (demons) argument successfully solves the logical problem of 
evil, proving that God and evil are logically compatible but other scholars explicitly dissent.
 The dissenters state that while explaining infectious diseases, cancer,
 hurricanes and other nature-caused suffering as something that is 
caused by the free will of supernatural beings solves the logical 
version of the problem of evil, it is highly unlikely that these natural
 evils do not have natural causes that an omnipotent God could prevent, 
but instead are caused by the immoral actions of supernatural beings 
with free will whom God created.
 According to Michael Tooley, this defense is also highly implausible 
because suffering from natural evil is localized, rational causes and 
cures for major diseases have been found, and it is unclear why anyone, 
including a supernatural being whom God created would choose to inflict 
localized evil and suffering to innocent children for example, and why 
God fails to stop such suffering if he is omnipotent.
- Free will and animal suffering
 
One of the weaknesses of the free will defense is its inapplicability
 or contradictory applicability with respect to evils faced by animals 
and the consequent animal suffering. Some scholars, such as David Griffin, state that the free will, or the assumption of greater good through free will, does not apply to animals.
 In contrast, a few scholars while accepting that "free will" applies in
 a human context, have posited an alternative "free creatures" defense, 
stating that animals too benefit from their physical freedom though that
 comes with the cost of dangers they continuously face.
The "free creatures" defense has also been criticized, in the 
case of caged, domesticated and farmed animals who are not free and many
 of whom have historically experienced evil and suffering from abuse by 
their owners. Further, even animals and living creatures in the wild 
face horrendous evils and suffering—such as burn and slow death after 
natural fires or other natural disasters or from predatory injuries—and 
it is unclear, state Bishop and Perszyk, why an all-loving God would 
create such free creatures prone to intense suffering. 
- Heaven and free will
 
There is also debate regarding the compatibility of moral free will 
(to select good or evil action) with the absence of evil from heaven, with God's omniscience and with his omnibenevolence.
One line of extended criticism of free will defense has been that
 if God is perfectly powerful, knowing and loving, then he could have 
actualized a world with free creatures without moral evil where everyone
 chooses good, is always full of loving-kindness, is compassionate, 
always non-violent and full of joy, where earth were just like the 
monotheistic concept of heaven.
 If God did create a heaven with his love, an all-loving and 
always-loving God could have created an earth without evil and suffering
 for animals and human beings just like heaven.
Process theodicy
"Process theodicy reframes the debate on the problem of evil by denying one of its key premises: divine omnipotence."
  It integrates philosophical and theological commitments while shifting
 theological metaphors.  For example, God becomes the Great Companion 
and Fellow-Sufferer where the future is realized hand-in-hand with the 
sufferer.
Soul-making or Irenaean theodicy
The soul-making or Irenaean theodicy is named after the 2nd-century Greek theologian Irenaeus, whose ideas were adopted in Eastern Christianity. It has been discussed by John Hick, and the Irenaean theodicy asserts that evil and suffering are necessary for spiritual growth, for man to discover his soul, and God allows evil for spiritual growth of human beings.
The Irenaean theodicy has been challenged with the assertion that
 many evils do not seem to promote spiritual growth, and can be 
positively destructive of the human spirit. Hick acknowledges that this 
process often fails in our world.
 A second issue concerns the distribution of evils suffered: were it 
true that God permitted evil in order to facilitate spiritual growth, 
then we would expect evil to disproportionately befall those in poor 
spiritual health. This does not seem to be the case, as the decadent 
enjoy lives of luxury which insulate them from evil, whereas many of the
 pious are poor, and are well acquainted with worldly evils.
 Thirdly, states Kane, human character can be developed directly or in 
constructive and nurturing loving ways, and it is unclear why God would 
consider or allow evil and suffering to be necessary or the preferred 
way to spiritual growth.
 Further, horrendous suffering often leads to dehumanization, its 
victims in truth do not grow spiritually but become vindictive and 
spiritually worse.
This reconciliation of the problem of evil and God, states 
Creegan, also fails to explain the need or rationale for evil inflicted 
on animals and resultant animal suffering, because "there is no evidence
 at all that suffering improves the character of animals, or is evidence
 of soul-making in them".
On a more fundamental level, the soul-making theodicy assumes 
that the virtues developed through suffering are intrinsically, as 
opposed to instrumentally, good. The virtues identified as "soul-making"
 only appear to be valuable in a world where evil and suffering already 
exist. A willingness to sacrifice oneself in order to save others from 
persecution, for example, is virtuous precisely because persecution 
exists. Likewise, we value the willingness to donate one's meal to those
 who are starving because starvation exists. If persecution and 
starvation did not occur, there would be no reason to consider these 
acts virtuous. If the virtues developed through soul-making are only 
valuable where suffering exists, then it is not clear that we would lose
 anything if suffering did not exist.
Cruciform theodicy
Soul-making
 theodicy and Process theodicy are full theodical systems with 
distinctive cosmologies, theologies and perspectives on the problem of 
evil; cruciform theodicy is not a system but is a thematic trajectory 
within them.  As a result, it does not address all the questions of "the
 origin, nature, problem, reason and end of evil," but it does represent an important change. "On July 16, 1944 awaiting execution in a Nazi prison and reflecting on Christ's experience of powerlessness and pain, Dietrich Bonhoeffer penned six words that became the clarion call for the modern theological paradigm shift: 'Only the suffering God can help."
  Classic theism includes "impassability" (God cannot suffer personally)
 as a necessary characteristic of God. Cruciform theodicy begins with 
Jesus' suffering "the entire spectrum of human sorrow, including 
economic exploitation, political disenfranchisement, social ostracism, 
rejection and betrayal by friends, even alienation from his own 
family...deep psychological distress... [grief]..." ridicule, 
humiliation, abandonment, beating, torture, despair, and death.
Theologian Jürgen Moltmann asserts the "passibility" of God saying "A God who cannot suffer cannot love." Philosopher and Christian priest Marilyn McCord Adams
 offers a theodicy of "redemptive suffering" which proposes that 
innocent suffering shows the "transformative power of redemption" rather
 than that God is not omnibenevolent.
Afterlife
Thomas Aquinas suggested the afterlife theodicy to address the problem of evil and to justifying the existence of evil.
 The premise behind this theodicy is that the afterlife is unending, 
human life is short, and God allows evil and suffering in order to judge
 and grant everlasting heaven or hell based on human moral actions and 
human suffering. Aquinas says that the afterlife is the greater good that justifies the evil and suffering in current life. Christian author Randy Alcorn argues that the joys of heaven will compensate for the sufferings on earth.
Stephen Maitzen has called this the "Heaven Swamps Everything" 
theodicy, and argues that it is false because it conflates compensation 
and justification.
A second objection to the afterlife theodicy is that it does not 
reconcile the suffering of small babies and innocent children from 
diseases, abuse, and injury in war or terror attacks, since "human moral
 actions" are not to be expected from babies and uneducated/mentored 
children.
 Similarly, moral actions and the concept of choice do not apply to the 
problem of evil applied to animal suffering caused by natural evil or 
the actions of human beings.
Deny evil exists
In
 the second century, Christian theologists attempted to reconcile the 
problem of evil with an omnipotent, omniscient, omnibenevolent God, by 
denying that evil exists. Among these theologians, Clement of Alexandria offered several theodicies, of which one was called "privation theory of evil" which was adopted thereafter.
 The other is a more modern version of "deny evil", suggested by 
Christian Science, wherein the perception of evil is described as a form
 of illusion.
Evil as the absence of good (privation theory)
The early version of "deny evil" is called the "privation theory of 
evil", so named because it described evil as a form of "lack, loss or 
privation". One of the earliest proponents of this theory was the 
2nd-century Clement of Alexandria, who according to Joseph Kelly,
 stated that "since God is completely good, he could not have created 
evil; but if God did not create evil, then it cannot exist". Evil, 
according to Clement, does not exist as a positive, but exists as a 
negative or as a "lack of good".
 Clement's idea was criticised for its inability to explain suffering in
 the world, if evil did not exist. He was also pressed by Gnostics 
scholars with the question as to why God did not create creatures that 
"did not lack the good". Clement attempted to answer these questions 
ontologically through dualism, an idea found in the Platonic school, that is by presenting two realities, one of God and Truth, another of human and perceived experience.
The fifth-century theologian Augustine of Hippo adopted the privation theory, and in his Enchiridion on Faith, Hope and Love, maintained that evil exists only as "absence of the good", that vices are nothing but the privations of natural good. Evil is not a substance, states Augustine, it is nothing more than "loss of good". God does not participate in evil, God is perfection, His creation is perfection, stated Augustine. According to the privation theory, it is the absence of the good, that explains sin and moral evil.
This view has been criticized as merely substituting definition, 
of evil with "loss of good", of "problem of evil and suffering" with the
 "problem of loss of good and suffering", but it neither addresses the 
issue from the theoretical point of view nor from the experiential point
 of view.
 Scholars who criticize the privation theory state that murder, rape, 
terror, pain and suffering are real life events for the victim, and 
cannot be denied as mere "lack of good".
 Augustine, states Pereira, accepted suffering exists and was aware that
 the privation theory was not a solution to the problem of evil.
Evil as illusory
An alternative modern version of the privation theory is by Christian Science,
 which asserts that evils such as suffering and disease only appear to 
be real, but in truth are illusions, and in reality evil does not exist.
 The theologists of Christian Science, states Stephen Gottschalk, posit 
that the Spirit is of infinite might, mortal human beings fail to grasp 
this and focus instead on evil and suffering that have no real existence
 as "a power, person or principle opposed to God".
The illusion version of privation theory theodicy has been 
critiqued for denying the reality of crimes, wars, terror, sickness, 
injury, death, suffering and pain to the victim.
 Further, adds Millard Erickson, the illusion argument merely shifts the
 problem to a new problem, as to why God would create this "illusion" of
 crimes, wars, terror, sickness, injury, death, suffering and pain; and 
why God does not stop this "illusion".
Turning the tables
A
 different approach to the problem of evil is to turn the tables by 
suggesting that any argument from evil is self-refuting, in that its 
conclusion would necessitate the falsity of one of its premises. One 
response—called the defensive response—has
 been to assert the opposite, and to point out that the assertion "evil 
exists" implies an ethical standard against which moral value is 
determined, and then to argue that this standard implies the existence 
of God.
The standard criticism of this view is that an argument from evil
 is not necessarily a presentation of the views of its proponent, but is
 instead intended to show how premises which the theist is inclined to 
believe lead him or her to the conclusion that God does not exist. A 
second criticism is that the existence of evil can be inferred from the 
suffering of its victims, rather than by the actions of the evil actor, 
so no "ethical standard" is implied. This argument was expounded upon by David Hume.
Hidden reasons
A
 variant of above defenses is that the problem of evil is derived from 
probability judgments since they rest on the claim that, even after 
careful reflection, one can see no good reason for co-existence of God 
and of evil. The inference from this claim to the general statement that there exists unnecessary evil is inductive in nature and it is this inductive step that sets the evidential argument apart from the logical argument.
The hidden reasons defense asserts that there exists the logical 
possibility of hidden or unknown reasons for the existence of evil along
 with the existence of an almighty, all-knowing, all-benevolent, 
all-powerful God. Not knowing the reason does not necessarily mean that 
the reason does not exist. This argument has been challenged with the assertion that the hidden 
reasons premise is as plausible as the premise that God does not exist 
or is not "an almighty, all-knowing, all-benevolent, all-powerful". 
Similarly, for every hidden argument that completely or partially 
justifies observed evils it is equally likely that there is a hidden 
argument that actually makes the observed evils worse than they appear 
without hidden arguments, or that the hidden reasons may result in 
additional contradictions. As such, from an inductive viewpoint hidden arguments will neutralize one another.
A sub-variant of the "hidden reasons" defense is called the "PHOG"—profoundly hidden outweighing goods—defense.
 The PHOG defense, states Bryan Frances, not only leaves the 
co-existence of God and human suffering unanswered, but raises questions
 about why animals and other life forms have to suffer from natural 
evil, or from abuse (animal slaughter, animal cruelty) by some human 
beings, where hidden moral lessons, hidden social good and such hidden 
reasons to reconcile God with the problem of evil do not apply.
Previous lives and karma
The theory of karma
 refers to the spiritual principle of cause and effect where intent and 
actions of an individual (cause) influence the future of that individual
 (effect).
 The problem of evil, in the context of karma, has been long discussed 
in Indian religions including Buddhism, Hinduism and Jainism, both in 
its theistic and non-theistic schools; for example, in Uttara Mīmāṃsā 
Sutras Book 2 Chapter 1; the 8th-century arguments by Adi Sankara in Brahmasutrabhasya
 where he posits that God cannot reasonably be the cause of the world 
because there exists moral evil, inequality, cruelty and suffering in 
the world; and the 11th-century theodicy discussion by Ramanuja in Sribhasya.
Many Indian religions place greater emphasis on developing the 
karma principle for first cause and innate justice with Man as focus, 
rather than developing religious principles with the nature and powers 
of God and divine judgment as focus.
 Karma theory of Buddhism, Hinduism and Jainism is not static, but 
dynamic wherein livings beings with intent or without intent, but with 
words and actions continuously create new karma, and it is this that 
they believe to be in part the source of good or evil in the world.
 These religions also believe that past lives or past actions in current
 life create current circumstances, which also contributes to either. 
Other scholars suggest that nontheistic Indian religious traditions do not assume an omnibenevolent creator, and some
 theistic schools do not define or characterize their god(s) as 
monotheistic Western religions do and the deities have colorful, complex
 personalities; the Indian deities are personal and cosmic facilitators,
 and in some schools conceptualized like Plato’s Demiurge.
 Therefore, the problem of theodicy in many schools of major Indian 
religions is not significant, or at least is of a different nature than 
in Western religions.
According to Arthur Herman, karma-transmigration theory solves 
all three historical formulations to the problem of evil while 
acknowledging the theodicy insights of Sankara and Ramanuja.
Pandeism
Pandeism
 is a modern theory that unites deism and pantheism, and asserts that 
God created the universe but during creation became the universe.
 In pandeism, God is no superintending, heavenly power, capable of 
hourly intervention into earthly affairs. No longer existing "above," 
God cannot intervene from above and cannot be blamed for failing 
to do so. God, in pandeism, was omnipotent and omnibenevolent, but in 
the form of universe is no longer omnipotent, omnibenevolent.
Monotheistic religions
Christianity
The Bible
Sociologist Walter Brueggemann
 says theodicy is "a constant concern of the entire Bible" and needs to 
"include the category of social evil as well as moral, natural 
(physical) and religious evil".
  There is general agreement among Bible scholars that the Bible "does 
not admit of a singular perspective on evil. ...Instead we encounter a 
variety of perspectives...  Consequently [the Bible focuses on] moral 
and spiritual remedies, not rational or logical [justifications].  ...It
 is simply that the Bible operates within a cosmic, moral and spiritual 
landscape rather than within a rationalist, abstract, ontological 
landscape."
  In the Holman Bible dictionary, evil is all that is "opposed to God 
and His purposes or that which, from the human perspective, is harmful 
and nonproductive."
  Theologian Joseph Onyango narrows that definition saying that "If we 
take the essentialist view of [biblical] ethics... evil is anything 
contrary to God's good nature...(meaning His character or attributes)."
Philosopher Richard Swinburne
 says that, as it stands in its classic form, the argument from evil is 
unanswerable, yet there may be contrary reasons for not reaching its 
conclusion that there is no God.
 These reasons are of three kinds: other strong reasons for affirming 
that there is a God; general reasons for doubting the force of the 
argument itself; and specific reasons for doubting the criteria of any 
of the argument's premises; "in other words, a theodicy."
  Christianity has responded with multiple traditional theodicies: the 
Punishment theodicy (Augustine), the Soul-making theodicy (Irenaeus), 
Process theodicy (Rabbi Harold Kushner), Cruciform theodicy (Moltmann), 
and the free-will defense (Plantinga) among them.
There are, essentially, four representations of evil in the Bible: chaos, human sin, Satanic/demonic forces, and suffering.
 The biblical language of chaos and chaos monsters such as Leviathan 
remind us order and harmony in our world are constantly assailed by 
forces "inimical to God's good creation."
 The Bible primarily speaks of sin as moral evil rather than natural or 
metaphysical evil with an accent on the breaking of God's moral laws, 
his covenant, the teachings of Christ and the injunctions of the Holy 
Spirit.
 The writers of the Bible take the reality of a spiritual world beyond 
this world and its containment of hostile spiritual forces for granted. 
While the post-Enlightenment world does not, the "dark spiritual forces"
 can be seen as "symbols of the darkest recesses of human nature."
 Suffering and misfortune are sometimes represented as evil in the 
Bible, though theologian Brian Han Gregg says, suffering in the Bible is
 represented twelve different ways.
- Deuteronomy 30 and Hebrews 12 open the possibilities that suffering may be punishment, natural consequences, or God's loving discipline.
 - Genesis 4:1-8 and the first murder suggests much suffering is the result of certain people's choices.
 - Genesis 45 says God's redemptive power is stronger than suffering and can be used to further good purposes.
 - Luke 22:31-34 says resist the fear and despair that accompany suffering, instead remember/believe God has the power to help.
 - Job 40 says God is not like humans but wants a relationship with all of them, which requires some surrender to God and acceptance of suffering.
 - Romans 8:18-30 sets present temporary suffering within the context of God's eternal purposes.
 - Hebrews 12:1-6 sets suffering within the concept of "soul-making" as do 2 Peter 1:5-8, James 1, and others.
 - Exodus 17:1-7 and the whole book of Job characterize suffering as testing and speak of God's right to test human loyalty.
 - 2 Corinthians 4:7-12 says human weakness during suffering reveals God's strength and that it is part of the believer's calling to embrace suffering in solidarity with Christ.
 - 2 Corinthians 1:3-7 says God is the comforter and that people learn how to better comfort others when they have personal experience of suffering.
 - The great hymn in Philippians 2, along with Colossians 1:24, combine to claim Christ redeems suffering itself. Believers are invited to share in that by emulating his good thoughts, words and deeds. All New Testament teachings on suffering are all grounded in and circle back to the fall of mankind and the possible redemptive power to individuals of the cross.
 
Jewish theodicy is experiencing extensive revision in light of the 
Holocaust while still asserting the difference between the human and 
divine perspective of evil. It remains rooted in the nature of creation 
itself and the limitation inherent in matter's capacity to be perfected;
 the action of freewill includes the potential for perfection from 
individual effort and leaves evil in human hands.
In the Hebrew Bible Genesis says God's creation is "good" with evil depicted as entering creation as a result of human choice.
 The book of Job "seeks to expand the understanding of divine justice 
...beyond mere retribution, to include a system of divine sovereignty 
[showing] the King has the right to test His subject's loyalty... [Job] 
corrects the rigid and overly simplistic doctrine of retribution in 
attributing suffering to sin and punishment."  Hebrew Bible scholar Marvin A. Sweeney
 says "...a unified reading of [Isaiah] places the question of theodicy 
at the forefront... [with] three major dimensions of the question: 
Yahweh's identification with the conqueror, Yahweh's decree of judgment 
against Israel without possibility of repentance, and the failure of 
Yahweh's program to be realized by the end of the book."
 Ezekiel and Jeremiah confront the concept of personal moral 
responsibility and understanding divine justice in a world under divine 
governance.  "Theodicy in the Minor Prophets differs little from that in Isaiah, Jeremiah and Ezekiel."
  In the Psalms more personal aspects of theodicy are discussed, such as
 Psalm 73 which confronts the internal struggle created by suffering.
  Theodicy in the Hebrew Bible almost universally looks "beyond the 
concerns of the historical present to posit an eschatological salvation"
 at that future time when God restores all things.
In the Bible, all characterizations of evil and suffering reveal 
"a God who is greater than suffering [who] is powerful, creative and 
committed to His creation [who] always has the last word."  God's 
commitment to the greater good is assumed in all cases.
Judgment Day
John Joseph Haldane's Wittgenstinian-Thomistic account of concept formation and Martin Heidegger's observation of temporality's thrown nature
 imply that God's act of creation and God's act of judgment are the same
 act. God's condemnation of evil is subsequently believed to be executed
 and expressed in his created world; a judgement that is unstoppable due
 to God's all powerful will; a constant and eternal judgement that 
becomes announced and communicated to other people on Judgment Day. In this explanation, God's condemnation of evil is declared to be a good judgement.
Irenaean theodicy
Irenaean theodicy, posited by Irenaeus (2nd century CE–c. 202), has been reformulated by John Hick. It holds that one cannot achieve moral goodness or love for God if there is no evil and suffering in the world. Evil is soul-making and leads one to be truly moral and close to God. God created an epistemic
 distance (such that God is not immediately knowable) so that we may 
strive to know him and by doing so become truly good. Evil is a means to
 good for three main reasons:
- Means of knowledge – Hunger leads to pain, and causes a desire to feed. Knowledge of pain prompts humans to seek to help others in pain.
 - Character building – Evil offers the opportunity to grow morally. "We would never learn the art of goodness in a world designed as a hedonistic paradise" (Richard Swinburne)
 - Predictable environment – The world runs to a series of natural laws. These are independent of any inhabitants of the universe. Natural Evil only occurs when these natural laws conflict with our own perceived needs. This is not immoral in any way
 
Augustinian theodicy
St Augustine of Hippo (354–430 CE) in his Augustinian theodicy, as presented in John Hick's book Evil and the God of Love,
 focuses on the Genesis story that essentially dictates that God created
 the world and that it was good; evil is merely a consequence of the fall of man (The story of the Garden of Eden where Adam and Eve disobeyed God and caused inherent sin for man). Augustine stated that natural evil (evil present in the natural world such as natural disasters etc.) is caused by fallen angels, whereas moral evil
 (evil caused by the will of human beings) is as a result of man having 
become estranged from God and choosing to deviate from his chosen path. 
Augustine argued that God could not have created evil in the world, as 
it was created good, and that all notions of evil are simply a deviation
 or privation of goodness. Evil cannot be a separate and unique 
substance. For example, Blindness is not a separate entity, but is 
merely a lack or privation of sight. Thus the Augustinian theodicist 
would argue that the problem of evil and suffering is void because God 
did not create evil; it was man who chose to deviate from the path of 
perfect goodness.
St. Thomas Aquinas
Saint
 Thomas systematized the Augustinian conception of evil, supplementing 
it with his own musings. Evil, according to St. Thomas, is a privation, 
or the absence of some good which belongs properly to the nature of the 
creature. There is therefore no positive source of evil, corresponding to the greater good, which is God;
 evil being not real but rational—i.e. it exists not as an objective 
fact, but as a subjective conception; things are evil not in themselves,
 but by reason of their relation to other things or persons. All 
realities are in themselves good; they produce bad results only 
incidentally; and consequently the ultimate cause of evil is 
fundamentally good, as well as the objects in which evil is found.
Luther and Calvin
Both Luther and Calvin explained evil as a consequence of the fall of man and the original sin. Calvin, however, held to the belief in predestination
 and omnipotence, the fall is part of God's plan. Luther saw evil and 
original sin as an inheritance from Adam and Eve, passed on to all 
mankind from their conception and bound the will of man to serving sin, 
which God's just nature allowed as consequence for their distrust, 
though God planned mankind's redemption through Jesus Christ. Ultimately humans may not be able to understand and explain this plan.
Liberal Christianity
Some modern liberal Christians, including French Calvinist theologian André Gounelle and Pastor Marc Pernot of L'Oratoire du Louvre, believe that God is not omnipotent, and that the Bible only describes God as "almighty" in passages concerning the End Times.
Christian Science
Christian Science
 views evil as having no ultimate reality and as being due to false 
beliefs, consciously or unconsciously held. Evils such as illness and 
death may be banished by correct understanding. This view has been 
questioned, aside from the general criticisms of the concept of evil as 
an illusion discussed earlier, since the presumably correct 
understanding by Christian Science members, including the founder, has 
not prevented illness and death.
 However, Christian Scientists believe that the many instances of 
spiritual healing (as recounted e.g. in the Christian Science 
periodicals and in the textbook Science and Health with Key to the 
Scriptures by Mary Baker Eddy) are anecdotal evidence of the correctness of the teaching of the unreality of evil.
 According to one author, the denial by Christian Scientists that evil 
ultimately exists neatly solves the problem of evil; however, most 
people cannot accept that solution
Jehovah's Witnesses
Jehovah's Witnesses believe that Satan is the original cause of evil.
 Though once a perfect angel, Satan developed feelings of 
self-importance and craved worship, and eventually challenged God's 
right to rule. Satan caused Adam and Eve
 to disobey God, and humanity subsequently became participants in a 
challenge involving the competing claims of Jehovah and Satan to 
universal sovereignty. Other angels who sided with Satan became demons. 
God's subsequent tolerance of evil is explained in part by the 
value of free will. But Jehovah's Witnesses also hold that this period 
of suffering is one of non-interference from God, which serves to 
demonstrate that Jehovah's
 "right to rule" is both correct and in the best interests of all 
intelligent beings, settling the "issue of universal sovereignty". 
Further, it gives individual humans the opportunity to show their 
willingness to submit to God's rulership. 
At some future time known to him, God will consider his right to universal sovereignty to have been settled for all time. The reconciliation of "faithful" humankind will have been accomplished through Christ,
 and nonconforming humans and demons will have been destroyed. 
Thereafter, evil (any failure to submit to God's rulership) will be 
summarily executed.
The Church of Jesus Christ of Latter-day Saints
The Church of Jesus Christ of Latter-day Saints (LDS Church) introduces a concept similar to Irenaean theodicy,
 that experiencing evil is a necessary part of the development of the 
soul. Specifically, the laws of nature prevent an individual from fully 
comprehending or experiencing good without experiencing its opposite. In this respect, Latter-day Saints do not regard the fall of Adam and Eve
 as a tragic, unplanned cancellation of an eternal paradise; rather they
 see it as an essential element of God's plan. By allowing opposition 
and temptations in mortality, God created an environment for people to 
learn, to develop their freedom to choose, and to appreciate and 
understand the light, with a comparison to darkness.
This is a departure from the mainstream Christian definition of omnipotence and omniscience, which Mormons believe was changed by post-apostolic theologians in the centuries after Christ. The writings of Justin Martyr, Origen, Augustine, and others indicate a merging of Christian principles with Greek metaphysical philosophies such as Neoplatonism, which described divinity as an utterly simple, immaterial, formless substance/essence (ousia) that was the absolute causality and creative source of all that existed. Mormons teach that through modern day revelation,
 God restored the truth about his nature, which eliminated the 
speculative metaphysical elements that had been incorporated after the Apostolic era.
 As such, God's omniscience/omnipotence is not to be understood as 
metaphysically transcending all limits of nature, but as a perfect 
comprehension of all things within nature—which gives God the power to bring about any state or condition within those bounds. This restoration also clarified that God does not create Ex nihilo (out of nothing), but uses existing materials to organize order out of chaos.
 Because opposition is inherent in nature, and God operates within 
nature’s bounds, God is therefore not considered the author of evil, nor
 will He eradicate all evil from the mortal experience.
 His primary purpose, however, is to help His children to learn for 
themselves to both appreciate and choose the right, and thus achieve 
eternal joy and live in his presence, and where evil has no place.
Islam
Islamic scholars in the medieval and modern era have tried to reconcile the problem of evil with the afterlife theodicy.
 According to Nursi, the temporal world has many evils such as the 
destruction of Ottoman Empire and its substitution with secularism, and 
such evils are impossible to understand unless there is an afterlife.
 The omnipotent, omniscient, omnibenevolent god in Islamic thought 
creates everything, including human suffering and its causes (evil). Evil was neither bad nor needed moral justification from God, but rewards awaited believers in the afterlife. The faithful suffered in this short life, so as to be judged by God and enjoy heaven in the never-ending afterlife.
Alternate theodicies in Islamic thought include the 11th-century 
Ibn Sina's denial of evil in a form similar to "privation theory" 
theodicy.
 This theodicy attempt by Ibn Sina is unsuccessful, according to Shams 
Inati, because it implicitly denies the omnipotence of God.
Judaism
According to Jon Levenson, the writers of Hebrew Bible were well 
aware of evil as a theological problem, but he does not claim awareness 
of the problem of evil.
 In contrast, according to Yair Hoffman, the ancient books of the Hebrew
 Bible do not show an awareness of the theological problem of evil, and 
even most later biblical scholars did not touch the question of the 
problem of evil.
 The earliest awareness of the problem of evil in Judaism tradition is 
evidenced in extra- and post-biblical sources such as early Apocrypha (secret texts by unknown authors, which were not considered mainstream at the time they were written). The first systematic reflections on the problem of evil by Jewish philosophers is traceable only in the medieval period.
The problem of evil gained renewed interest among Jewish scholars after the moral evil of the Holocaust.
 The all-powerful, all-compassionate, all-knowing monotheistic God 
presumably had the power to prevent the Holocaust, but he didn't.
 The Jewish thinkers have argued that either God did not care about the 
torture and suffering in the world He created—which means He is not 
omnibenevolent, or He did not know what was happening—which means He is 
not omniscient.
 The persecution of Jewish people was not a new phenomenon, and medieval
 Jewish thinkers had in abstract attempted to reconcile the logical 
version of the problem of evil. The Holocaust experience and other episodes of mass extermination such as the Gulag and the Killing Fields
 where millions of people experienced torture and died, however, brought
 into focus the visceral nature of the evidential version of the problem
 of evil.
The 10th-century Rabbi called Saadia Gaon presented a theodicy along the lines of "soul-making, greater good and afterlife". Suffering suggested Saadia, in a manner similar to Babylonian Talmud Berakhot 5, should be considered as a gift from God because it leads to an eternity of heaven in afterlife. In contrast, the 12th-century Moses Maimonides
 offered a different theodicy, asserting that the all-loving God neither
 produces evil nor gifts suffering, because everything God does is 
absolutely good, then presenting the "privation theory" explanation. Both these answers, states Daniel Rynhold, merely rationalize and suppress the problem of evil, rather than solve it.
 It is easier to rationalize suffering caused by a theft or accidental 
injuries, but the physical, mental and existential horrors of persistent
 events of repeated violence over long periods of time such as 
Holocaust, or an innocent child slowly suffering from the pain of 
cancer, cannot be rationalized by one sided self blame and belittling a 
personhood.
 Attempts by theologians to reconcile the problem of evil, with claims 
that the Holocaust evil was a necessary, intentional and purposeful act 
of God have been declared obscene by Jewish thinkers such as Richard 
Rubenstein.
Other religions
Ancient Mesopotamia and Egypt
The ancient Egyptian
 religion, according to Roland Enmarch, potentially absolved their gods 
from any blame for evil, and used a negative cosmology and the negative 
concept of human nature to explain evil.
 Further, the Pharaoh was seen as an agent of the gods and his actions 
as a king were aimed to prevent evil and curb evilness in human nature.
Ancient Greek religion
The gods in Ancient Greek religion were seen as superior, but shared similar traits with humans and often interacted with them.
 Although the Greeks didn't believe in any "evil" gods, the Greeks still
 acknowledged the fact that evil was present in the world.
 Gods often meddled in the affairs of men, and sometimes their actions 
consisted of bringing misery to people, for example gods would sometimes
 be a direct cause of death for people.
 However, the Greeks did not consider the gods to be evil as a result of
 their actions, instead the answer for most situations in Greek 
mythology was the power of fate. Fate is considered to be more powerful than the gods themselves and for this reason no one can escape it. For this reason the Greeks recognized that unfortunate events were justifiable by the idea of fate.
Later Greek and Roman theologians and philosophers discussed the 
problem of evil in depth. Starting at least with Plato, philosophers 
tended to reject or de-emphasize literal interpretations of mythology in
 favor of a more pantheistic, natural theology
 based on reasoned arguments. In this framework, stories that seemed to 
impute dishonorable conduct to the gods were often simply dismissed as 
false, and as being nothing more than the "imagination of poets."  Greek
 and Roman thinkers continued to wrestle, however, with the problems of natural evil and of evil that we observe in our day-to-day experience.  Influential Roman writers such as Cicero and Seneca, drawing on earlier work by the Greek philosophers such as the Stoics,
 developed many arguments in defense of the righteousness of the gods, 
and many of the answers they provided were later absorbed into Christian
 theodicy.
Buddhism
Buddhism
 neither denies the existence of evil, nor does it attempt to reconcile 
evil in a way attempted by monotheistic religions that assert the 
existence of an almighty, all powerful, all knowing, all benevolent God. Buddhism, as a non-theistic religion like Jainism, does not assume or assert any creator God, and thus the problem of evil or of theodicy does not apply to it. It considers a benevolent, omnipotent creator god as attachment to be a false concept.
Buddhism accepts that there is evil in the world, as well as Dukkha
 (suffering) that is caused by evil or because of natural causes (aging,
 disease, rebirth). The precepts and practices of Buddhism, such as Four Noble Truths and Noble Eightfold Path aim to empower a follower in gaining insights and liberation (nirvana) from the cycle of such suffering as well as rebirth.
Some strands of Mahayana Buddhism developed a theory of Buddha-nature in texts such as the Tathagata-garbha Sutras composed in 3rd-century south India, which is very similar to the "soul, self" theory found in classical Hinduism. The Tathagata-garbha theory leads to a Buddhist version of the problem of evil, states Peter Harvey,
 because the theory claims that every human being has an intrinsically 
pure inner Buddha which is good. This premise leads to the question as 
to why anyone does any evil, and why doesn't the "intrinsically pure 
inner Buddha" attempt or prevail in preventing the evil actor before he 
or she commits the evil. One response has been that the Buddha-nature is omnibenevolent, but not omnipotent. Further, the Tathagata-garbha Sutras are atypical texts of Buddhism, because they contradict the Anatta doctrines in a vast majority of Buddhist texts, leading scholars to posit that the Tathagatagarbha Sutras were written to promote Buddhism to non-Buddhists, and that they do not represent mainstream Buddhism.
The mainstream Buddhism, from its early days, did not need to 
address the theological problem of evil as it saw no need for a creator 
of the universe and asserted instead, like many Indian traditions, that 
the universe never had a beginning and all existence is an endless cycle
 of rebirths (samsara).
Hinduism
Hinduism is a complex religion with many different currents or schools.
 Its non-theist traditions such as Samkhya, early Nyaya, Mimamsa and 
many within Vedanta do not posit the existence of an almighty, 
omnipotent, omniscient, omnibenevolent God (monotheistic God), and the 
classical formulations of the problem of evil and theodicy do not apply 
to most Hindu traditions. Further, deities in Hinduism are neither eternal nor omnipotent nor omniscient nor omnibenevolent. Devas are mortal and subject to samsara. Evil as well as good, along with suffering is considered real and caused by human free will, its source and consequences explained through the karma doctrine of Hinduism, as in other Indian religions.
A version of the problem of evil appears in the ancient Brahma Sutras, probably composed between 200 BCE and 200 CE, a foundational text of the Vedanta tradition of Hinduism.
 Its verses 2.1.34 through 2.1.36 aphoristically mention a version of 
the problem of suffering and evil in the context of the abstract 
metaphysical Hindu concept of Brahman. The verse 2.1.34 of Brahma Sutras asserts that inequality and cruelty in the world cannot be attributed to the concept of Brahman, and this is in the Vedas and the Upanishads. In his interpretation and commentary on the Brahma Sutras,
 the 8th-century scholar Adi Shankara states that just because some 
people are happier than others and just because there is so much malice,
 cruelty and pain in the world, some state that Brahman cannot be the 
cause of the world.
For that would lead to the possibility of partiality and cruelty. For it can be reasonably concluded that God has passion and hatred like some ignoble persons... Hence there will be a nullification of God's nature of extreme purity, (unchangeability), etc., [...] And owing to infliction of misery and destruction on all creatures, God will be open to the charge of pitilessness and extreme cruelty, abhorred even by a villain. Thus on account of the possibility of partiality and cruelty, God is not an agent.
— Purvapaksha by Adi Shankara, Translated by Arvind Sharma
Shankara attributes evil and cruelty in the world to Karma of oneself, of others, and to ignorance, delusion and wrong knowledge, but not to the abstract Brahman. Brahman itself is beyond good and evil. There is evil and suffering because of karma.
 Those who struggle with this explanation, states Shankara, do so 
because of presumed duality, between Brahman and Jiva, or because of 
linear view of existence, when in reality "samsara and karma are anadi" 
(existence is cyclic, rebirth and deeds are eternal with no beginning). In other words, in the Brahma Sutras, the formulation of problem of evil is considered a metaphysical construct, but not a moral issue.  Ramanuja of the theistic Sri Vaishnavism
 school—a major tradition within Vaishnavism—interprets the same verse 
in the context of Vishnu, and asserts that Vishnu only creates 
potentialities.
According to Swami Gambhirananda of Ramakrishna Mission, 
Sankara's commentary explains that God cannot be charged with partiality
 or cruelty (i.e. injustice) on account of his taking the factors of 
virtuous and vicious actions (Karma) performed by an individual in 
previous lives. If an individual experiences pleasure or pain in this 
life, it is due to virtuous or vicious action (Karma) done by that 
individual in a past life.
A sub-tradition within the Vaishnavism school of Hinduism that is an exception is dualistic Dvaita, founded by Madhvacharya
 in the 13th-century. This tradition posits a concept of God so similar 
to Christianity, that Christian missionaries in colonial India suggested
 that Madhvacharya was likely influenced by early Christians who 
migrated to India, a theory that has been discredited by scholars. Madhvacharya was challenged by Hindu scholars on the problem of evil, given his dualistic Tattvavada theory that proposed God and living beings along with universe as separate realities. Madhvacharya asserted, Yathecchasi tatha kuru,
 which Sharma translates and explains as "one has the right to choose 
between right and wrong, a choice each individual makes out of his own 
responsibility and his own risk".
 Madhva's reply does not address the problem of evil, state Dasti and 
Bryant, as to how can evil exist with that of a God who is omnipotent, 
omniscient, and omnibenevolent.
According to Sharma, "Madhva's tripartite classification of souls makes it unnecessary to answer the problem of evil".
 According to David Buchta, this does not address the problem of evil, 
because the omnipotent God "could change the system, but chooses not to"
 and thus sustains the evil in the world. This view of self's agency of Madhvacharya was, states Buchta, an outlier in Vedanta school and Indian philosophies in general.
By philosopher
The earliest statement of the problem of evil is attributed to Epicurus, but this is uncertain.
Epicurus
Epicurus is generally credited with first expounding the problem of evil, and it is sometimes called the "Epicurean paradox", the "riddle of Epicurus", or the "Epicurus' trilemma":
Is God willing to prevent evil, but not able? Then he is not omnipotent.
Is he able, but not willing? Then he is malevolent.
Is he both able and willing? Then whence cometh evil?
Is he neither able nor willing? Then why call him God?
— The Epicurean paradox, ~300 BCE
There is no surviving written text of Epicurus that establishes that 
he actually formulated the problem of evil in this way, and it is 
uncertain that he was the author. An attribution to him can be found in a text dated about 600 years later, in the 3rd century Christian theologian Lactantius's Treatise on the Anger of God
 where Lactantius critiques the argument. Epicurus's argument as 
presented by Lactantius actually argues that a god that is all-powerful 
and all-good does not exist and that the gods are distant and uninvolved
 with man's concerns. The gods are neither our friends nor enemies.
David Hume
David Hume's formulation of the problem of evil in Dialogues Concerning Natural Religion:
"Is he [God] willing to prevent evil, but not able? then is he impotent. Is he able, but not willing? then is he malevolent. Is he both able and willing? whence then is evil?"
"[God's] power we allow [is] infinite: Whatever he wills is executed: But neither man nor any other animal are happy: Therefore he does not will their happiness. His wisdom is infinite: He is never mistaken in choosing the means to any end: But the course of nature tends not to human or animal felicity: Therefore it is not established for that purpose. Through the whole compass of human knowledge, there are no inferences more certain and infallible than these. In what respect, then, do his benevolence and mercy resemble the benevolence and mercy of men?"
Gottfried Leibniz
Gottfried Leibniz
In his Dictionnaire Historique et Critique, the sceptic Pierre Bayle denied the goodness and omnipotence of God on account of the sufferings experienced in this earthly life. Gottfried Leibniz introduced the term theodicy in his 1710 work Essais de Théodicée sur la bonté de Dieu, la liberté de l'homme et l'origine du mal
 ("Theodicic Essays on the Benevolence of God, the Free will of man, and
 the Origin of Evil") which was directed mainly against Bayle. He argued
 that this is the best of all possible worlds that God could have created. 
Imitating the example of Leibniz, other philosophers also called their treatises on the problem of evil theodicies. Voltaire's popular novel Candide mocked Leibnizian optimism through the fictional tale of a naive youth.
Thomas Robert Malthus
The population and economic theorist Thomas Malthus
 stated in a 1798 essay that people with health problems or disease are 
not suffering, and should not viewed as such. Malthus argued, "Nothing 
can appear more consonant to our reason than that those beings which 
come out of the creative process of the world in lovely and beautiful 
forms should be crowned with immortality, while those which come out 
misshapen, those whose minds are not suited to a purer and happier state
 of existence, should perish and be condemned to mix again with their 
original clay. Eternal condemnation of this kind may be considered as a 
species of eternal punishment, and it is not wonderful that it should be
 represented, sometimes, under images of suffering."
Malthus believed in the Supreme Creator, considered suffering as 
justified, and suggested that God should be considered "as pursuing the 
creatures that had offended him with eternal hate and torture, instead 
of merely condemning to their original insensibility those beings that, 
by the operation of general laws, had not been formed with qualities 
suited to a purer state of happiness."
Immanuel Kant
Immanuel Kant wrote an essay on theodicy.
 He suggested, states William Dembski, that any successful theodicy must
 prove one of three things: [1] what one deems contrary to the 
purposefulness of world is not so; [2] if one deems it is contrary, then
 one must consider it not as a positive fact, but inevitable consequence
 of the nature of things; [3] if one accepts that it is a positive fact,
 then one must posit that it is not the work of God, but of some other 
beings such as man or superior spirits, good or evil.
Kant did not attempt or exhaust all theodicies to help address 
the problem of evil. He claimed there is a reason all possible 
theodicies must fail.
 While a successful philosophical theodicy has not been achieved in his 
time, added Kant, there is no basis for a successful anti-theodicy 
either.
Corollaries
Problem of good
Several philosophers
 have argued that just as there exists a problem of evil for theists who
 believe in an omniscient, omnipotent and omnibenevolent being, so too 
is there a problem of good for anyone who believes in an omniscient, 
omnipotent, and omnimalevolent (or perfectly evil) being. As it appears 
that the defenses and theodicies which might allow the theist to resist 
the problem of evil can be inverted and used to defend belief in the 
omnimalevolent being, this suggests that we should draw similar 
conclusions about the success of these defensive strategies. In that 
case, the theist appears to face a dilemma: either to accept that both 
sets of responses are equally bad, and so that the theist does not have 
an adequate response to the problem of evil; or to accept that both sets
 of responses are equally good, and so to commit to the existence of an 
omnipotent, omniscient, and omnimalevolent being as plausible.
Critics have noted that theodicies and defenses are often 
addressed to the logical problem of evil. As such, they are intended 
only to demonstrate that it is possible that evil can co-exist 
with an omniscient, omnipotent and omnibenevolent being. Since the 
relevant parallel commitment is only that good can co-exist with an 
omniscient, omnipotent and omnimalevolent being, not that it is 
plausible that they should do so, the theist who is responding to the 
problem of evil need not be committing himself to something he is likely
 to think is false. This reply, however, leaves the evidential problem of evil untouched.
Morality
Another
 general criticism is that though a theodicy may harmonize God with the 
existence of evil, it does so at the cost of nullifying morality. This 
is because most theodicies assume that whatever evil there is exists 
because it is required for the sake of some greater good. But if an evil
 is necessary because it secures a greater good, then it appears we 
humans have no duty to prevent it, for in doing so we would also prevent
 the greater good for which the evil is required. Even worse, it seems 
that any action can be rationalized, as if one succeeds in performing 
it, then God has permitted it, and so it must be for the greater good. 
From this line of thought one may conclude that, as these conclusions 
violate our basic moral intuitions, no greater good theodicy is true, 
and God does not exist. Alternatively, one may point out that greater 
good theodicies lead us to see every conceivable state of affairs as 
compatible with the existence of God, and in that case the notion of 
God's goodness is rendered meaningless.