Continuing my series on Aquinas; find the rest here. Now, preliminaries settled, we dive into the deep end. Chapter 3 of the Compendium Theologiae begins, Regarding the unity of the divine essence, we must first believe that God exists. This is a truth clearly known by reason. In dealing with truths known by revelation, Thomas proceeds in one of two ways. Some of these revealed truths can also be known by reason; and these he attempts to prove. Others can... Read more