GTJ 11:1 (Spr 90) p. 43 Evidently, this was a situation where the apostolic tradition was looked to in adjudging the heterodox nature of the Montanist position. In an attempt to discredit this position, parts of the ancient church were not averse to denying books it had previously approved, in order to cut the ground out from under the heterodox.62 The production of Tatian’s Diatessaron must be considered in the process of the development of the canonization of the New Testament. Tatian, a pupil