High Quality Content by WIKIPEDIA articles! Philosophy of religion is a branch of philosophy concerned with questions regarding religion, including the nature and existence of God, the examination of religious experience, analysis of religious language and texts, and the relationship of religion and science. It is an ancient discipline, being found in the earliest known manuscripts concerning philosophy, and relates to many other branches of philosophy and general thought, including metaphysics, logic, and history. Philosophy of religion is frequently discussed outside of academia through popular books and debates, mostly regarding the existence of God and problem of evil.