At this point I would suggest focusing on yourself, taking care of yourself. Like all control freaks, he's using anything he can to control your behavior, whether or not it is logical, including the argument that "God says you cannot leave me." If God wants to keep you from leaving, when you try believe me He'll stop you.

Whether you stay or go, begin planning your life as if you will not get any contribution from him. Figure out how you'll feed you and your child (and the animals if you haven't already gotten rid of them). Start living a blissful and blessed life without him. He'll either come around or go away even if you don't leave him.