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 intention and genre, gospel sources and oral tradition, textual criticism, and historical authenticity of specific sayings and narrative events. The genre of the gospels is essential in understanding the intentions of the authors regarding the historical value of the texts. New Testament scholar Graham Stanton states that "the gospels are now widely considered to be a sub-set of the broad ancient literary genre of biographies." Charles H. Talbert agrees that the gospels should be grouped with the Graeco-Roman biographies, but adds that such biographies included an element of mythology, and that the synoptic gospels also included elements of mythology. E.P.