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
Historical reliability of the Gospels of Durham and university professor, has stated that "Certainly not! There is absolutely no certainty in the New Testament about anything of importance." Critical scholars have developed a number of criteria to evaluate the probability, or historical authenticity, of an attested event or saying represented in the gospels. These criteria are applied to the gospels in order to help scholars in reconstructions of the Historical Jesus. The criterion of dissimilarity argues that if a saying or action is dissimilar to, or contrary to, the views of Judaism in the context of Jesus or the views of the early church, then