Mystery Authors
When it comes to the Gnostic gospels, just about every book carries the name of a New Testament character: the Gospel of Philip, the Gospel of Peter, the Gospel of Mary, The Gospel of Judas, and so on. (Sounds a little like roll call at a parochial school.) These are the books that conspiracy theories like The Da Vinci Code are based upon. But were they even written by their purported authors?
The Gnostic gospels are dated about 110 to 300 years after Christ, and no credible scholar believes any of them could have been written by their namesakes. In James M. Robinson’s comprehensive The Nag Hammadi Library, we learn that the Gnostic gospels were written by “largely unrelated and anonymous authors.”12 Dr. Darrell L. Bock, professor of New Testament studies at Dallas Theological Seminary, wrote,
“The bulk of this material is a few generations removed from the foundations of the Christian faith, a vital point to remember when assessing the contents.”13
New Testament scholar Norman Geisler commented on two Gnostic writings, the Gospel of Peter and the Acts of John. (These Gnostic writings are not to be confused with the New Testament books written by John and Peter.):
“The Gnostic writings were not written by the apostles, but by men in the second century (and later) pretending to use apostolic authority to advance their own teachings. Today we call this fraud and forgery.”14
The Gnostic gospels are not historical accounts of Jesus’ life but instead are largely esoteric sayings, shrouded in mystery, leaving out historical details such as names, places, and events. This is in striking contrast to the New Testament Gospels, which contain innumerable historical facts about Jesus’ life, ministry, and words.
http://y-jesus.com/monalisa_8.php