Whatever you do, do not trust any scholar, theologian or expert on the origin of Christianity. The simple fact is that they do not know. I doubt very much if any of them, anywhere, know.

The origin of Christianity was given on the Paul Smith Papers when it was launched in May 2001; and then again when Priory-of-Sion website was launched on 29 December 2003. In fact the explanation for Christianity is mentioned in every single copy of The Holy Bible that contains The New Testament. The origin of Christianity is found right in front of all our eyes, and people cannot see it. They are all blind.

The Gospel of Thomas, Logion 5