This is an extended discussion of this timeless argument of faith and reason. In 1965 D Z Phillips published The Concept of Prayer, one of his first books, and the first time that the influence of Wittgenstein's thought in the philosophy of religion was truly exposed. Two years later, in 1967, Kai Nielsen published his famous article "Wittgensteinian Fideism" in the journal Philosophy. Their respective philosophical work has developed over the years,...