In the beginning, God created Humans, mostly just for the heck of it. Humans, wanting to understand what they come from, in turn created God. God did not enjoy being created, and in turn retaliated with the creation of Sin. Humans, now out of their 'adorable newborn phase' and more in the 'rebellious teen phase' decided to Sin as much as possible to make God's creation of sin meaningless. In doing so, all Humans died, since Humanity and Sin could only exist together. But of course, since Humanity was gone, so now was God.
Creation begats destruction, both in your world and in... The Twilight Zone.