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 the Gospel of Matthew known today was composed in Greek and is neither directly dependent upon nor a translation of a text in a Semitic language. The process of canonization of the New Testament was complex and lengthy. In the initial centuries of early Christianity, there were many books widely considered by the church to be inspired, but there was no single formally recognized New Testament canon. The process was characterized by a compilation of books that apostolic tradition considered authoritative in worship and teaching, relevant to the historical situations in which they lived, and consonant with the Old Testament.