When someone in the Western world today asks how we can know God exists, he or she usually has in mind the God presented to us in the Bible. Christianity, together with Judaism and Islam, has so shaped our common religious thinking that we usually don’t start to think, as the ancient pagans did, about a collection of lesser, competing gods. When we say God, we mean one, great, first and ultimate, overall God, a creator and overseer and guide for the whole orderly universe. When we ask, “Is there a God?” we don’t usually mean, “Is there any god out of a whole bunch?” but, “Is the one God real?”