The Forgery of the Gospel Narrative

John's view of Jesus is based on a long history within his own community that were these views have developed. He hasn't read Matthew, Mark, Luke, or MQ and L. And so he thinks this is the common sensical view. Another sort of interesting example of a gospel narrative which people might have good reason to think was invented by the author,. I think, at the birth narratives found in only two of the gospels with some discrepancies. In this instance, are we not provided with an example of clear evidence of forgery?