In the final of four volumes, William J. Abraham seeks an account of God as an agent. Systematic theology raises deep metaphysical questions about the central concepts we use in our thinking about God. If God is an agent, the question of how to articulate this conviction arises. Abraham illumines the concept of God as agent by attending to various traditional problems in Christian doctrine like the relation of freedom and grace, divine action in liberation theology, the presence of God in the Eucharist, divine providence, the relationship of Christianity and Islam, the relation of the natural sciences to theology and apparent design, and the realm of the demonic. Divine action is the point of departure for reflection on these topics. It not only clarifies the concept of God as an agent but also solutions to these traditional problems.