‘Philosophy in general has God as its object and indeed as its only proper object. Philosophy is no worldly wisdom, as it used to be called; it was called that in contrast with faith. It is not in fact a wisdom of the world but instead a cognitive knowledge of the non-worldly; it is not cognition of external existence, of empirical determinate being and life, or of the formal universe, but rather cognition of all that is eternal – of what God is and of what God’s nature is as it manifests and develops itself.’
Besides, in philosophy of religion we have as our object God himself, absolute reason. Since we know God who is absolute reason, and investigate this reason, we cognise it, we behave cognitively.
G.W.F.Hegel, Lectures on the Philosophy of Religion Vol. I, Ed., Peter C. Hodgson, Trans., R.F.Brown, P.C.Hodgson, J.M.Stewart, Clarendon Press, Oxford, 2007, 116-7, 170