“The Resurrection of Thomism” by Doug Erlandson
At the heart of the philosophy of St. Thomas Aquinas lies his natural theology. The linchpin of that theology is his Five Ways–his arguments for the existence of God. The presupposition behind all this is the belief that God’s existence can be demonstrated on theologically neutral grounds. If God’s existence cannot be demonstrated, then neither can His attributes. It is no accident that Aquinas’ arguments for God’s existence precede his discussion of God’s attributes. Without the former, his demonstration of the latter would be impossible.
Many twentieth century evangelicals have been attracted to the natural theology of Aquinas, agreeing with him at least in their belief that God’s existence can be demonstrated on theologically neutral grounds. The list includes Stuart C. Hackett, Norman Geisler, R.C. Sproul, J.P. Moreland, and William Lane Craig. In light of the resurgence of the Thomistic arguments and their attractiveness for evangelicals, we must examine afresh its approach to the apologetic task.