Ok I need the title of a movie and my memory of it is a little fuzzy.

What I know about it.

One word title

Father has two sons and teaches them that he is the hand of god on earth. God supposedly shows him who he is supposed ot kill and the sons at about 12 or so become part of it as well.


I have it on the tip of my tongue but can't get the name out and it is going to drive me crazy if I can't figure it out.