In some parts of the church, the Apocalypse of John (the book of Revelation) was flat out rejected as containing false teaching, whereas the Apocalypse of Peter, which eventually did not make it in, was accepted. There were some Christians who accepted the Gospel of Peter and some who rejected the Gospel of John. There were some Christians who accepted a truncated version of the Gospel of Luke (without its first two chapters), and others who accepted the now noncanonical Gospel of Thomas. Some Christians rejected the three Pastoral Epistles of 1 and 2 Timothy and Titus, which eventually made it in, and others accepted the Epistle of Barnabas, which did not.

Bart D. Ehrman