175 Votes in Poll
I have no idea how this website works, so... On Charlie's page, it says that nephilim are mentioned in Genesis 6:4 - they're not. As a matter of fact, they're not mentioned in the bible at all because in Christian mythology, angels don't have bodies, they're spiritual beings, therefore they also don't have genders and are not able to have sex. The word nephilim actually refers to beings in other mythologies that are half god, half human, and I believe it was Supernatural that first used it for half-angels (correct me if I'm wrong; if there are earlier stories about them, I don't know them and they are most definitely not canon). Didn't know where else to put this comment.
Oh, by the way: Gen 6:4 is about God's preparation of the flood because humans live in so much sin.
Edit: Actually, there was some popular culture that used the phrase nephilim for half-angels before, but the phrase is used for "giants" in the bible (some translations just use the word giant). It is likely that this refers to the sons of God which probably means nothing else than God-fearing or the offspring of Adam.