This article examines Gabriel Marcel's unique approach to the existence of God, and its implications for traditional philosophy of religion. After some preliminary remarks about the realm of "problems" (which would include the "rational"), and about the question of whether Marcel thinks God's existence admits of a rational argument, Part I explains his account of how the individual subject can arrive at an affirmation of God through experiences of fidelity and promise-making. Part II proposes a way in which Marcel's own philosophical and phenomenological approach could be regarded as a type of argument for the existence of God. The last section suggests that Marcel's approach offers an advance upon the views of William Alston and John Hick concerning the analysis of religious experience.
