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
Jesus in Christianity last week of the life of Jesus in Jerusalem. In the New Testament the teachings of Jesus are presented in terms of his "words and works". The words of Jesus include several sermons, in addition to parables that appear throughout the narrative of the Synoptic Gospels (the gospel of John includes no parables). The works include the miracles and other acts performed during his ministry. Although the Canonical Gospels are the major source of the teachings of Jesus, the Pauline epistles, which were likely written decades before the gospels, provide some of the earliest written accounts of the teachings of