Let's see. We are talking about a guy born from a virgin, during the great tax (7 AD) or during the reign of Herod (4 BCE). Someone who walked on water, made a dead man come back to life, cured lepers, rose from dead and claimed to be God almighty himself, and you need to be convinced otherwise that there is something wrong with the story.
Nope I can't think of anything other than that.
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"On Earth as it is in Heaven, the Cosmic Roots of the Bible" available on the Amazon.