Analytic philosopher and inaugural holder from the Jellema Seat in Beliefs at Calvin University. He went to Harvard College or university. He became known for his efforts to the beliefs of religious beliefs, epistemology, metaphysics, and Christian apologetics. He found that some individuals believe they may be completely sure God is present. He had written God and Additional Thoughts from 1967, Warranted Christian Perception from 2000, and was known as “America’s leading orthodox Protestant philosopher of God” by Period Magazine. He wedded Kathleen De Boer in 1955. His function was backed by Thomas Nagel.