Creation seems to be delegation through and through. [God] will do nothing simply of Himself which can be done by His creatures. I suppose this is because He is a giver. And He has nothing to give but Himself. And to give Himself is to do His deeds - in a sense, and on varying levels to be Himself - through the things He has made.
In Pantheism God is all. But the whole point of creation surely is that He was not content to be all. He intends to be 'all in all.'
~ C. S. Lewis, Letters to Malcolm Chiefly on Prayer