The historicity of Jesus concerns the analysis of historical evidence to determine if Jesus existed as a historical figure, and if any of the major milestones in his life as portrayed in the gospels can be confirmed as historical events, as opposed to the Christ myth theory, which holds that he is a fictional figure. The related study of the historical Jesus attempts to reconstruct portraits of his life and teachings, based on methods such as biblical criticism of gospel texts and the history of first century Judea.
Historicity is the study of the historical actuality of persons and events, meaning the quality of being part of history as opposed to being a historical myth or legend, or of being part of prehistory. Questions of historicity arise where accounts of events are believed by some to be true, but cannot be verified, either due to the absence of historical records of sufficient accepted reliability or where historical accounts incorporate folklore, theological views or literature as fact.
Since the 18th century a number of quests for the historical Jesus have taken place, and historical critical methods for studying the historicity of Jesus have been developed. Various Christian and non-Christian sources are used to study and establish the historicity of Jesus, e.g. Jewish sources such as Josephus, and Roman sources such as Tacitus. These sources are compared and contrasted to Christian sources such as the Pauline Letters and the Synoptic Gospels. These sources are usually independent of each other (e.g. Jewish sources do not draw upon Roman sources), and similarities and differences between them are used in the authentication process.
The question of the existence of Jesus as a historical figure is distinct from the study of the historical Jesus which goes beyond the analysis of his historicity and attempts to reconstruct portraits of his life and teachings, based on methods such as biblical criticism of gospel texts and the history of first century Judea. Nor does it concern supernatural or miraculous claims about Jesus, which historians tend to look on as questions of faith, rather than historical fact.
Virtually all modern scholars of antiquity agree that Jesus existed, and most biblical scholars and classical historians see the theories of his non-existence as effectively refuted. In antiquity, the existence of Jesus was never denied by those who opposed Christianity. There is, however, widespread disagreement among scholars on the details of the life of Jesus mentioned in the gospel narratives, and on the meaning of his teachings.Robert E. Van Voorst states that the idea of the non-historicity of the existence of Jesus has always been controversial, and has consistently failed to convince virtually all scholars of many disciplines.Geoffrey Blainey notes that a few scholars have argued that Jesus did not exist, but writes that Jesus' life was in fact "astonishingly documented" by the standards of the time – more so than any of his contemporaries – with numerous books, stories and memoirs written about him. The problem for the historian, wrote Blainey, is not therefore, determining whether Jesus actually existed, but rather in considering the "sheer multitude of detail and its inconsistencies and contradictions". Although a very small number of modern scholars argue that Jesus never existed, that view is a distinct minority and virtually all scholars consider theories that Jesus' existence was a Christian invention as implausible.Christopher Tuckett states that the existence of Jesus and his crucifixion by Pontius Pilate seem to be part of the bedrock of historical tradition, based on the availability of non-Christian evidence.Graham Stanton states that "Today nearly all historians, whether Christians or not, accept that Jesus existed".
The sources for the historicity of Jesus are mainly Christian sources, but there are some mentions also in a few non-Christian Jewish and Greco-Roman sources, which have been used in historical analyses of the existence of Jesus. These include the works of 1st-century Roman historians Josephus and Tacitus. Josephus scholar Louis H. Feldman has stated that "few have doubted the genuineness" of Josephus' reference to Jesus in Antiquities 20, 9, 1 and it is only disputed by a small number of scholars.Bart D. Ehrman states that the existence of Jesus and his crucifixion by the Romans is attested to by a wide range of sources, including Josephus and Tacitus.
The Mishnah (c. 200) may refer to Jesus and reflect the early Jewish traditions of portraying Jesus as a sorcerer or magician. Other possible references to Jesus and his execution may exist in the Talmud, but they also aim to discredit his actions, not deny his existence.
The reconstruction of portraits of the historical Jesus along with his life story has been the subject of wide ranging debate among scholars, with no scholarly consensus. In a review of the state of research Amy-Jill Levine stated that "no single picture of Jesus has convinced all, or even most scholars" and that all portraits of Jesus are subject to criticism by some group of scholars. 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" that they are often the starting points for the study of the historical 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, debated Jewish authorities on the subject of God, gathered followers, and was crucified by Roman prefect Pontius Pilate who officiated 26-36 AD.
Scholars attribute varying levels of certainty to other episodes. E.P. Sanders and Craig A. Evans independently state that there are two other incidents in the life of Jesus that can be considered historical: that Jesus called disciples, and that he caused a controversy at the Temple. This extended view assumes that there are eight elements about Jesus and his followers that can be viewed as historical facts—four episodes in the life of Jesus and four about him and his followers, namely:
Jesus was baptized by John the Baptist. He called disciples. He had a controversy at the Temple. Jesus was crucified by the Romans near Jerusalem.
Jesus was a Galilean. His activities were confined to Galilee and Judea. After his death his disciples continued. Some of his disciples were persecuted.
Scholarly agreement on this extended list is not universal.
"Christ myth theory" is an umbrella term that applies to a range of arguments that question the existence of Jesus as described in the Christian gospels. The theory that Jesus never existed at all has support from a small minority of modern scholars.
In the early church, there were already tendencies to portray Jesus as a verifiable demonstration of the extraordinary. Since the 18th century, scholars have taken part in three separate "quests" for the historical Jesus, attempting to reconstruct various portraits of his life using historical methods. Although textual criticism of Biblical sources had been practiced for centuries, these quests introduced new methods and specific methodologies to determine the historical validity of their conclusions.
While textual criticism (or lower criticism) had been practiced for centuries, a number of approaches to historical analysis and a number of criteria for evaluating the historicity of events emerged as of 18th century, as a series of "Quests for the historical Jesus" took place. At each stage of development, scholars suggested specific forms and methodologies of analysis and specific criteria to be used to determine historical validity.
^ abIn a 2011 review of the state of modern scholarship, Bart Ehrman (a secular agnostic) wrote: "He certainly existed, as virtually every competent scholar of antiquity, Christian or non-Christian, agrees" B. Ehrman, 2011 Forged : writing in the name of GodISBN 978-0-06-207863-6. page 285
^Robert M. Price (a Christian atheist) who denies the existence of Jesus agrees that this perspective runs against the views of the majority of scholars: Robert M. Price "Jesus at the Vanishing Point" in The Historical Jesus: Five Views edited by James K. Beilby & Paul Rhodes Eddy, 2009 InterVarsity, ISBN 0830838686 page 61
^ abMichael Grant (a classicist) states that "In recent years, 'no serious scholar has ventured to postulate the non historicity of Jesus' or at any rate very few, and they have not succeeded in disposing of the much stronger, indeed very abundant, evidence to the contrary." in Jesus by Michael Grant 2004 ISBN 1898799881 page 200
^ abRichard A. Burridge states: "There are those who argue that Jesus is a figment of the Church’s imagination, that there never was a Jesus at all. I have to say that I do not know any respectable critical scholar who says that any more." in Jesus Now and Then by Richard A. Burridge and Graham Gould (Apr 1, 2004) ISBN 0802809774 page 34
^ abcJesus as a Figure in History: How Modern Historians View the Man from Galilee by Mark Allan Powell 1998 ISBN 0-664-25703-8 page 181
^ abcJesus Remembered by James D. G. Dunn 2003 ISBN 0-8028-3931-2 page 339 states of baptism and crucifixion that these "two facts in the life of Jesus command almost universal assent".
^ abcdeProphet and Teacher: An Introduction to the Historical Jesus by William R. Herzog (4 Jul 2005) ISBN 0664225284 pages 1-6
^Crossan, John Dominic (1995). Jesus: A Revolutionary Biography. HarperOne. p. 145. ISBN0-06-061662-8. "That he was crucified is as sure as anything historical can ever be, since both Josephus and Tacitus...agree with the Christian accounts on at least that basic fact."
^ abcdRobert E. Van VoorstJesus Outside the New Testament: An Introduction to the Ancient Evidence Eerdmans Publishing, 2000. ISBN 0-8028-4368-9 page 16 states: "biblical scholars and classical historians regard theories of non-existence of Jesus as effectively refuted"
^ abJames D. G. Dunn "Paul's understanding of the death of Jesus" in Sacrifice and Redemption edited by S. W. Sykes (Dec 3, 2007) Cambridge University Press ISBN 052104460X pages 35-36 states that the theories of non-existence of Jesus are "a thoroughly dead thesis"
^ abcThe Gospels and Jesus by Graham Stanton, 1989 ISBN 0192132415 Oxford University Press, page 145 states : "Today nearly all historians, whether Christians or not, accept that Jesus existed".
^Paul L. Maier "The Date of the Nativity and Chronology of Jesus" in Chronos, kairos, Christos: nativity and chronological studies by Jerry Vardaman, Edwin M. Yamauchi 1989 ISBN 0-931464-50-1 pages 113-129
^ ab. Many scholars agree that Jesus debated with fellow Jews on how best to live according to God's will, engaged in healings and exorcisms, taught in parables, gathered male and female followers in Galilee, went to Jerusalem, and was crucified by Roman soldiers during the governorship of Pontius Pilate" The Historical Jesus in Context edited by Amy-Jill Levine et al. Princeton Univ Press ISBN 978-0-691-00992-6 page 4
^Joel B. Green, Scot McKnight, I. Howard Marshall, Dictionary of Jesus and the Gospels (InterVarsity Press, 1992), page 442
^The Historical Jesus in Recent Research edited by James D. G. Dunn and Scot McKnight 2006 ISBN 1-57506-100-7 page 303
^Who Is Jesus? by John Dominic Crossan, Richard G. Watts 1999 ISBN 0664258425 pages 28-29
^James Barr, Which language did Jesus speak, Bulletin of the John Rylands University Library of Manchester, 1970; 53(1) pages 9-29 
^Jesus: Apocalyptic Prophet of the New Millennium by Bart D. Ehrman (23 Sep 1999) ISBN 0195124731 Oxford Univ Press pages ix-xi
^"What about the resurrection? ... Some people believe it did, some believe it didn't. ...But if you do believe it, it is not as a historian Ehrman, B. Jesus, Interrupted, pg 176 HarperOne; 1 Reprint edition (2 February 2010)
^Encyclopedia of theology: a concise Sacramentum mundi by Karl Rahner 2004 ISBN 0-86012-006-6 pages 730-731
^Van Voorst, Robert E (2000). Jesus Outside the New Testament: An Introduction to the Ancient Evidence. Eerdmans Publishing. ISBN 0-8028-4368-9-page 15
^The Cambridge companion to Jesus by Markus N. A. Bockmuehl 2001 Cambridge Univ Press ISBN 978-0-521-79678-1 pages 123-124. Page 124 state that the "farfetched theories that Jesus' existence was a Christian invention are highly implausible."