The God of the bible is way to perfect to create something so irrational and arbitrary.
I think it would suck to be as powerful as he is and too know everything that is going to happen before it does happen. That would suck even to God.
Maybe he wanted something to thrill him-give him a challenge so to speak? Maybe even he wanted to see what would happen if he did not get involved for s***s and giggles...and I am being serious here.