Development of the New Testament canon a novelty in Irenaeus's time. "Against Heresies" 3.11.7 acknowledges that many heterodox Christians use only one gospel while 3.11.9 acknowledges that some use more than four. The success of Tatian's Diatessaron in about the same time period is "...a powerful indication that the fourfold Gospel contemporaneously sponsored by Irenaeus was not broadly, let alone universally, recognized." Irenaeus apparently quotes from 21 of the New Testament books and names the author he thought wrote the text. He mentions the four gospels, Acts, the Pauline epistles with the exception of Hebrews and Philemon, as well as the first epistle of Peter, and
Historical background of the New Testament Historical background of the New Testament Most scholars who study the historical Jesus and early Christianity believe that the canonical gospels and life of Jesus must be viewed within his historical and cultural context, rather than purely in terms of Christian orthodoxy. They look at Second Temple Judaism, the tensions, trends, and changes in the region under the influence of Hellenism and the Roman occupation, and the Jewish factions of the time, seeing Jesus as a Jew in this environment; and the written New Testament as arising from a period of oral gospel traditions after his death. In 64 BCE,