retreat into contradiction. For instance, I once had a conversation with a man who had a PhD in philosophy, and he objected to Christianity on the grounds that the doctrine of the Trinity represented a manifest contradiction—the idea that one can also be three—at the heart of the Christian faith. Apparently this professor of philosophy was not familiar with the law of non-contradiction. That law states, “A cannot be A and non-A at the same time and in the same relationship.” When we confess our faith