In this course, we will explore the foundations of Aquinas’s metaphysical theology.1 Particular attention will be paid to the existential proof for God’s existence (as it is found in De ente et essentia) and what the proof means for divine simplicity and for God’s attributes and names. In addition, we will consider some of the more robust and recent philosophical objections, not only to Aquinas’s own account, but to the activity of metaphysical/natural theology itself. Students by term’s end will have acquired a thorough grasp of Aquinas’s metaphysics of God, its place in relevant philosophical debates, and its utmost importance to the practice of sound theology. In addition to class lectures, there will be a short paper (in two, peer-reviewed drafts) and a final oral exam.