English: There is a particular question that has plagued classical Christian theism over the centuries. What reason could God have for creating a universe? In this article, I shall articulate the unique claims of classical theism that other rival models of God lack. I shall argue that classical theism’s unique commitments entail that God cannot create the universe for a reason. Thus, any nonclassical model of God can claim to have the advantage over classical theism because they can affirm that God creates the universe for a reason. In Section 1, I shall articulate classical theism. In Section 2, I shall lay the groundwork for the debate by explaining what a reason is and what a creation is. In Section 3, I shall argue that a classical theist cannot affirm that God creates the universe for a reason, thus conflicting with God’s perfect rationality.