User blog comment:Twilight Despair 5/Death and God/@comment-46.12.244.68-20130815210224

I think your second thought is quite logical ( as much logic you can put in somethnig like that). But it would be cool, in the Supernatural Universe of course not trying offend any religious beliefs, if God and Death are actually one person/being. God is the aspect of Father/Creator who created the universe, the one who sets the rules of its function and purpsose, and Death is the Preserver/Judge of Creation, the one who make sure that everything is in Order and if any part of Creation becomes a threat to the world He has the responsibility of destroying it.

As long as the creation is in order and follows these rules the Father aspect is dominent and by extention more powerful, that's why Death was under a binding spell before Lucifer broke him free. When The End Of The World comes as it should be, not by enforcing it like the Archangels did,  the Preserver aspect will be dominent. and when there is nothing left The Father aspect will be vanished for good. that could be a short of "reaping" God. not by actually killing him, but by simply stop acting as God. This could explain why God didn't directly help the Brothers during the Apocalypse, apart from appearing as a Prophet, but Death actually gave the means of trapping Lucifer