The idea that morality stems from the creator of the universe is baffling. It is "might is right" taken to its extreme, logical, horrible conclusion.
Even if there is a creator, and you can believe whatever you want about that, the idea that whatever it says is good/bad by definition is good/bad just because it says so is absurd!
Morality is hard. There are no easy answers. So naturally we want to avoid the difficulties by deferring to a higher power. But bad is not good no matter who says so.