Paul Helm investigates what religious faith is and what makes it reasonable. Helm argues that the reasonableness of faith depends not only on beliefs about the world but also on beliefs about oneself and on what one is willing to trust; he examines the relations between belief and trust, and between faith and virtue.

Paul Helm investigates what religious faith is and what makes it reasonable. While religious beliefs need to stand up to philosophical scrutiny just like other beliefs, religious epistemology must respect the distinctiveness of their subject-matter. Helm argues that the reasonableness of faith depends not only on beliefs about the world but also on beliefs about oneself and on what one is willing to trust.

Helm argues convincingly for distinguishing between the involuntariness of specific beliefs and the involuntary nature of broader patterns of belief... Helm is as trenchant in his critique of Barth's view of the unconditionality of faith as he is in his critique of evidentialist philosophies of religion.