Augustinian Calvinism is a term used to emphasize the origin of John Calvin's theology within Augustine of Hippo's theology over a thousand years earlier. By his own admission, John Calvin's theology was deeply influenced by Augustine of Hippo, the fourth-century church father. Twentieth-century Reformed theologian B. B. Warfield said, "The system of doctrine taught by Calvin is just the Augustinianism common to the whole body of the Reformers." Paul Helm, a well-known Reformed theologian, used the term Augustinian Calvinism for his view in the book "The Augustinian-Calvinist View" in Divine Foreknowledge: Four Views.