In The Beginning

Adam & Eve are not who you think they are. They're offspring became the Canaanites. The Snake People. Gog of Magog and they are not jews at all but rather Hittites. Cain and Able is cannibal.

Mel Gibson and Jim Caviezel commentary

Cain came down to the city of NOD to spread his demon seed to the Good People. and havoc has been here since these demons from below arrived...