For those who don't know early Christian theology, the book of Genesis talks about creatures called "Nephilem' which were the offspring of angels doing the nasty with humans. They were supposedly giants, and lead to many interesting theories that - in my opinion - reveal more truth to the original historical contexts. Like the "giants" the Israelites saw in the promised land, theorized to be the same thing.

I don't subscribe to the prophecy/law sections of the Bible but the historical recountings still have more to be revealed. Especially if you start pulling in early apocrypha like Enoch and Ezra.