>>57
Well, they say God is far beyond our ability to comprehend, and that we don't understand his motives, how his mind works, and such. It's impossible to argue with that. The tests are only enough to make us strongly suspect that there must be no God.
Of course, it doesn't matter how often they say "the ways of God are mysterious", because we all know that they have no proof that this God character even exists in the first place.
And they can say things like "God planted fossils to test our faith," it just sounds totally conspiracy-theorist-like. But it is valid, nonetheless. I mean, he's omnipotent, so it is within his capacity.