The timeless and unchanging nature of God was defended by Dr. Eric Mascall throughout his books. He argued against process theology, and in particular the works of mathematician and philosopher Alfred North Whitehead, who was one of its foremost exponents. In his books, Mascall defended the distinction between our temporal and created nature and God’s divine and uncreated nature as found in historic theology. In a manner suited to his learning, he discussed the implications of modern physics for theology.