Might be time to find a job, possibly in another town or state.
This situation is not going to get any better, he feels that he has the power and will continue to show you who is in charge.
I do not believe that there are any text book answers to why one is an abuser, well educated or not well educated, christian or not christian---it makes no matter, an abuser is an abuser.
All I've learned is that it is up to me to make the changes, for me. I choose not to be abused. I choose not to waste my life with an alcoholic.
That's my choice---what's yours?
Take care of you.