Yeah, I can definitely get down with this theory. Although, sideways-Jack seems to have this glint in his eye that indicates that he knows something. The appearance of Desmond on the plane in the first episode is also kind of wonky. The Jesus analogy works really well. My theory is that Jacob is the original Jacob from the bible, and that we'll see a lot more biblical stuff as the show winds down. It's like Lost is THE BIBLE 2.