Preston Manning has described himself as "a great fan and imperfect follower of Jesus of Nazareth" and has studied and lectured extensively on managing the interface between faith and politics. In doing so, he draws upon a large reservoir of spiritual resources which includes the Judeo-Christian scriptures and reflects the influence of Augustine, Martin Luther, Jean Calvin, Jonathan Edwards, John Wesley, William Wilberforce, Fyodor Dostoyevsky, William James, Abraham Kuyper, Dietrich Bonhoeffer, Helmut Theilke, C. S. Lewis, Malcolm Muggeridge, Billy Graham, James Houston and Charles Price.