Harold Ristau was born in Waterloo, Ontario, Canada, and has served as a parish pastor, military chaplain, African missionary, and seminary professor. He is currently Professor of Theology at Luther Classical College in Casper, Wyoming. He holds a BA and MA in political science and economics, with specialties in administrative studies (University of Waterloo), an MDiv (Brock University), and a PhD in religious studies (McGill University). He is the author of several publications on a vast array of political, ethical, and theological subjects and the author of several books including My First Exorcism: What the Devil Taught a Lutheran Pastor About Counter-Cultural Spirituality, When You Fast: The Sacramental Character of Fasting, At Peace with War: A Chaplain’s Meditations from Afghanistan, and Spiritual Warfare: For the Care of Souls. He is married with five children and one grandchild.