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
Development of the New Testament canon as are held by the smaller number and those of less authority." (On Christian Doctrines 2.12, chapter 8). Augustine effectively forced his opinion on the Church by commanding three synods on canonicity: the Synod of Hippo in 393, the Synod of Carthage (397), and another in Carthage in 419 AD (M 237-8). Each of these reiterated the same Church law: "nothing shall be read in church under the name of the divine scriptures" except the Old Testament (including the Deuterocanonicals) and the 27 canonical books of the New Testament. It seems these decrees also declared by fiat that Epistle to