Free Will in Philosophical Theology takes the most recent philosophical work on free will and uses it to elucidate and explore theological doctrines involving free will. Rather than being a work of natural theology, it is a work in what has been called clarification—using philosophy to understand, develop, systematize, and explain theological claims without first raising the justification for holding the theological claims that one is working with. Timpe's aim is to show how a particular philosophical account of the nature of free will—an account known as source incompatibilism—can help us understand a range of theological doctrines.