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
Language of the New Testament Language of the New Testament The New Testament was written in a form of Koine Greek, which was the common language of the Eastern Mediterranean from the Conquests of Alexander the Great (335–323 BC) until the evolution of Byzantine Greek (c. 600). The New Testament Gospels and Epistles were only part of a Hellenistic Jewish culture in the Roman Empire, where Alexandria had a larger Jewish population than Jerusalem, and Greek was spoken by more Jews than Hebrew. Other Jewish Hellenistic writings include those of Jason of Cyrene, Josephus, Philo, Demetrius the chronographer, Eupolemus, Pseudo-Eupolemus, Artapanus of Alexandria, Cleodemus Malchus,