Time travel is a bit bloody. No matter what, no matter how you travel through the past, there will be some bloodshed. What's more, the time travel is intentional and man-made.
God does exist, but unfortunately, God does not have superpowers, nor is he very smart. He is neither a genius nor a fool. If we really want to describe it,
God should be an ordinary human being
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.