Development of the New Testament canon day called that of the sun" (Sunday) alongside the "writings of the prophets." A defined set of four gospels (the "Tetramorph") was asserted by Irenaeus, "c". 180, who refers to it directly. By the early 3rd century, Origen may have been using the same twenty-seven books as in the present New Testament canon, though there were still disputes over the acceptance of the Letter to the Hebrews, James, II Peter, II John, III John, Jude and Revelation, known as the Antilegomena. Likewise, the Muratorian fragment is evidence that, perhaps as early as 200, there existed a set of Christian writings
New Testament people named John among Jews of the time. He is usually identified with the Mark mentioned in various epistles, and with Mark the Evangelist. This John is occasionally proposed as author of some of the Johannine works as well. Tarazi even goes so far as to attribute to him the Gospels of both Mark and John and all the other Johannine books. Five canonical books of the New Testament are ascribed to John and thus called collectively the "Johannine literature": Only in Revelation does the text itself name its author as John; the other Johannine works are ascribed to John only through their