Development of the New Testament canon a heretic and in the early 4th century Bishop Theodoretus of Cyrrhus and Bishop Rabbula of Edessa (both in Syria) rooted out all copies they could find of the Diatessaron and replaced them with the four canonical Gospels (M 215). As a result, no early copies of the Diatessaron survive—although a very early fragment suggests it would have been crucial evidence for the true state of the early Gospels (see IX). By the 5th century, the Syriac Bible, called the Peshitta, was formalized, accepting Philemon, along with James, 1 Peter and 1 John, but excluding 2 John, 3 John, 2
New Testament people named John among Jews of the time. He is usually identified with the Mark mentioned in various epistles, and with Mark the Evangelist. This John is occasionally proposed as author of some of the Johannine works as well. Tarazi even goes so far as to attribute to him the Gospels of both Mark and John and all the other Johannine books. Five canonical books of the New Testament are ascribed to John and thus called collectively the "Johannine literature": Only in Revelation does the text itself name its author as John; the other Johannine works are ascribed to John only through their