Greg Boyd explains some details of his upcoming book: Jesus versus Jehovah.  I will hold any judgments until I read it, but I agree at least with this part of his summary:

“Though he was in fact all-holy, on Calvary the Son of God identified with our sin to the point of bearing our guilt. So too, the Father is said to have afflicted his Son (Isa. 53) though in fact he merely allowed wicked powers using wicked people to crucify Jesus. When we read the Old Testament through this lens, we find God frequently identifying himself as the agent of violence, though the context makes it clear that he is merely allowing violent agents to do what they want to do. God is portrayed as doing what he actually merely allows.  There are historical and exegetic reasons for this, but the theological reason, I argue, is that God has always been a God who takes responsibility for all that he allows — even though he detests much of what he allows. This is how God bears our sin and why he takes on the semblance of a nationalistic, law-oriented warrior god.”