Idea: "The Father" or "The Book of Ami"

It was Nietzsche who said "God is dead. God remains dead. And we have killed him.". What if that was a relief?

The idea of this book is a book about the agony of conscience, about knowing that you've made mistakes, fundamental, fatal mistakes that have f*cked up your life and the life of your children, about the consequences of decisions made that you can't go back on.
The setting will be Genesis, Exodus etc and it'll be providing the rest of the story about God, as though they were a parent.

The idea came to me when I was telling David about a book I'd been reading on the Kindle. I was complaining that I couldn't understand the motivations or emotional life of the protagonist, in fact, none of the characters seemed to have much of an emotional life at all. It seems to me that the protagonist sets up the other characters to fail and disappoint him, gets disappointed, and then punishes the other characters, who don't appear to understand, so they f*ck up again and the protag gets disappointed again. David said "Sounds like hard going honey, what's the book" and I said "Genesis". Much laughter. But that's what started the idea -- there should be the other part of the story...what are the motivations?

So I want to tell my version of the motivations of the protagonist of the bible. I can't decide what to call them -- God is the one people usually use but that has too much belief attached to it. Maybe one of the names like Adonai or Elohim. Ideas?