Who can tell me this?

Question

The name of a movie that involves a dad and his two sons. The dad kills people under the belief that he is being told by god and is doing his work. He has his sons believing it until the older one sees through it and starts to question it. The dad then makes the older son dig a huge hole for a place to store the bodies in their back yard and then locks the older son in there for a week. This is all i can remember and its killing me to know!

Answer 1

...you're talking about "Frailty" (2001), directed by & starring Bill Paxton, who plays the father.

...check it out below!!!