AHA! But you're wrong! Newton was a Christian - I guess that disproves this whole "gravity" thing right there.However, I don't thing the church liked Newton's theory when he first put it out, as he was one of those "the earth is not the centre of the universe" people, and he didn't leave room for god. But religions evolve.
Seriously, though, Newton may have held some views that would have been considered heretical at the time, but he was a devout theist. He considered much of his scientific work to be an exposition of his believe that God wasn't an inconstant god that ruled the universe with miracles and according to changing whims, but a perfect (and therefore unchanging) God who set in place a fair and ordered way for the universe to operate.