I believe God is a phenomenom of the universe, using sentience and the water molecule to observe itself through higher dimensional transmission. Satan as a direct adversary to God is a Jewish invention, it is meant to represent deception and subversion of holy principles. I doubt that God is even a fully developed entity yet. I wouldn't be surprised to learn that this is not the first run at organizing and developing His will. Given the apparent vastness of reality there may be even a society of galactic sentiences.