The question of the historicity of Jesus is part of the study of the historical Jesus as undertaken in the quest for the historical Jesus and the scholarly reconstructions of the life of Jesus. Virtually all scholars of antiquity accept that Jesus was a historical figure, although not all events mentioned in the gospels (most notably his miracles) are accepted universally. Standard historical criteria have aided in evaluating the historicity of the gospel-narratives, and two events subject to "almost universal assent" are that Jesus was baptized by John the Baptist and was crucified by order of the Roman Prefect Pontius Pilate.
Historical existence and Christ Myth Theory
The quest for the historical Jesus and the scholarly reconstructions of the life of Jesus are based primarily on critical analysis of the gospel texts and applying the standard criteria of critical-historical investigation, and methodologies for analyzing the reliability of primary sources and other historical evidence.
Virtually all scholars of antiquity agree that a historical human Jesus existed. Historian Michael Grant asserts that if conventional standards of historical textual criticism are applied to the New Testament, "we can no more reject Jesus' existence than we can reject the existence of a mass of pagan personages whose reality as historical figures is never questioned."
The Christ myth theory, which developed within the scholarly research on the historical Jesus, is the view that "the story of Jesus is a piece of mythology," possessing no "substantial claims to historical fact." Alternatively, in terms given by Bart Ehrman paraphrasing Earl Doherty, "the historical Jesus did not exist. Or if he did, he had virtually nothing to do with the founding of Christianity."
While this idea appeals to a minority in popular opinion, the overwhelming majority of scholars do not hold this view. Virtually all biblical scholars and classical historians see the theories of his non-existence as effectively refuted, and in modern scholarship, the Christ myth theory is a fringe theory and finds virtually no support from scholars.
Sources
The New Testament represents sources that have become canonical for Christianity, and there are many apocryphal texts that are examples of the wide variety of writings in the first centuries AD that are related to Jesus.
New Testament sources
Synoptic Gospels
The Synoptic Gospels are the primary sources of historical information about Jesus and of the religious movement he founded. These religious gospels–the Gospel of Matthew, the Gospel of Mark, and the Gospel of Luke–recount the life, ministry, crucifixion and resurrection of a Jew named Jesus who spoke Aramaic. There are different hypotheses regarding the origin of the texts because the gospels of the New Testament were written in Greek for Greek-speaking communities, and were later translated into Syriac, Latin, and Coptic. Historians often study the historical reliability of the Acts of the Apostles when studying the reliability of the gospels, as the Book of Acts was seemingly written by the same author as the Gospel of Luke.
Pauline epistles
The seven Pauline epistles considered by scholarly consensus to be genuine are dated to between AD 50 and 60 (i.e., approximately twenty to thirty years after the generally accepted time period for the death of Jesus) and are the earliest surviving Christian texts that may include information about Jesus. Although Paul the Apostle provides relatively little biographical information about Jesus and states that he never knew Jesus personally, he does make it clear that he considers Jesus to have been a real person and a Jew. Moreover, he claims to have met with James, the brother of Jesus and Jesus's apostles Peter and John.
Non-Christian sources
Josephus and Tacitus
Non-Christian sources used to study and establish the historicity of Jesus include the c. first century Jewish historian Josephus and Roman historian Tacitus. These sources are compared to Christian sources, such as the Pauline letters and synoptic gospels, and are usually independent of each other; that is, the Jewish sources do not draw upon the Roman sources. Similarities and differences between these sources are used in the authentication process.
In Books 18 and 20 of Antiquities of the Jews, written around AD 93 to 94, Josephus twice refers to the biblical Jesus. The general scholarly view holds that the longer passage, known as the Testimonium Flavianum, most likely consists of an authentic nucleus that was subjected to later Christian interpolation or forgery. On the other hand, Josephus scholar Louis H. Feldman states that "few have doubted the genuineness" of the reference found in Antiquities 20, 9, 1 to "the brother of Jesus, who was called Christ, whose name was James".
Tacitus, in his Annals (written c. AD 115), book 15, chapter 44, describes Nero's scapegoating of the Christians following the Fire of Rome. He writes that the founder of the sect was named Christus (the Christian title for Jesus); that he was executed under Pontius Pilate; and that the movement, initially checked, broke out again in Judea and even in Rome itself. The scholarly consensus is that Tacitus' reference to the execution of Jesus by Pontius Pilate is both authentic, and of historical value as an independent Roman source.
Mishnah
The Mishnah (c. 200) may refer to Jesus as it reflects the early Jewish traditions of portraying Jesus as a sorcerer or magician. Other references to Jesus and his execution exist in the Talmud, but they aim to discredit his actions, not deny his existence.
Critical-historical research
Quest for the historical Jesus
Since the 18th century, three separate scholarly quests for the historical Jesus have taken place, each with distinct characteristics and based on different research criteria, which were often developed during that phase. Various criteria of authenticity are developed and employed to distinguish early oral elements from later literary elements in the Gospel stories, regarding those early elements as original elements of Jesus' teachings and biography.
Currently modern scholarly research on the historical Jesus focuses on what is historically probable, or plausible about Jesus. Since the late 2000s, concerns have been growing about the usefulness of these criteria.
Historical Jesus
There is widespread disagreement among scholars on the historicity of specific episodes described in the biblical accounts of Jesus, the details of the life of Jesus mentioned in the gospel narratives, and on the meaning of his teachings. Many scholars have questioned the authenticity and reliability of these sources, and few events mentioned in the gospels are universally accepted.
Baptism and crucifixion
The only two events subject to "almost universal assent" are that Jesus was baptized by John the Baptist and was crucified by order of the Roman Prefect Pontius Pilate.
According to New Testament scholar James Dunn, nearly all modern scholars consider the baptism of Jesus and his crucifixion to be historically certain. He states that these "two facts in the life of Jesus command almost universal assent" and "rank so high on the 'almost impossible to doubt or deny' scale of historical 'facts' they are obvious starting points for an attempt to clarify the what and why of Jesus' mission." John P. Meier views the crucifixion of Jesus as historical fact and states that based on the criterion of embarrassment Christians would not have invented the painful death of their leader. The criterion of embarrassment is also used to argue in favor of the historicity of the baptism of Jesus by John the Baptist as it is a story which the early Christian Church would have never wanted to invent. Based on this criterion, given that John baptised for the remission of sins, and Jesus was viewed as without sin, the invention of this story would have served no purpose, and would have been an embarrassment given that it positioned John above Jesus.
Amy-Jill Levine has summarized the situation by stating that "there is a consensus of sorts on the basic outline of Jesus' life" in that most scholars agree that Jesus was baptized by John the Baptist, and over a period of one to three years debated Jewish authorities on the subject of God, gathered followers, and was crucified by Roman prefect Pontius Pilate who officiated 26–36 AD.
Other episodes
There is much in dispute as to his previous life, childhood, family and place of residence, of which the canonical gospels are almost completely silent.
Scholars attribute varying levels of certainty to other episodes. E. P. Sanders proposed eight "indisputable facts" about Jesus's life as a framework for biographical discussion: Jesus was a Galilean preacher.
- His activities were confined to Galilee and Judea.
- He was baptized by John the Baptist.
- He called disciples.
- He had a controversy at the Temple.
- Jesus was crucified by the Romans near Jerusalem.
- After his death his disciples continued.
- Some of his disciples were persecuted.
Scholarly agreement on this extended list is not universal. Elements whose historical authenticity are disputed include the two accounts of the nativity of Jesus; the miracles, such as turning water into wine, feeding the multitude, walking on water, and various cures, exorcisms, and resurrections; his own resurrection; and certain details about his crucifixion.
Portraits of the historical Jesus
The portraits of Jesus constructed in the quests have often differed from each other, and from the image portrayed in the gospel accounts. There are overlapping attributes among the portraits, and while pairs of scholars may agree on some attributes, those same scholars may differ on other attributes, and there is no single portrait of the historical Jesus that satisfies most scholars. The mainstream profiles in the third quest may be grouped together based on their primary theme as apocalyptic prophet; charismatic healer; Cynic philosopher; Jewish Messiah; and prophet of social change; but there is little scholarly agreement on a single portrait, or the methods needed to construct it. There are, however, overlapping attributes among the portraits, and scholars who differ on some attributes may agree on others.