Something to think about

I was given this statement to think about today: If God does things because they are good, then God answers to a higher power (the Good). But if God decides what is good, then it is arbitrary (whatever God says IS good, no matter what you think about it or your reason tells you or your experience reveals). I have some thoughts about it, but I need to form them better before I write them down. Any thoughts out there? E-mail me and let me know.