- Author, Professor Emeritus at Bethel University
- PhD English Literature, Emory University
- Specializes in modernist literature
The Skeptical Believer: Telling Stories to Your Inner Atheist. St Paul: Bog Walk Press, 2013.
Creating a Spiritual Legacy: Sharing Your Stories, Values, and Wisdom. Grand Rapids: Brazos, 2011.
The Expanded Bible. Nashville: Thomas Nelson, 2009, 2011. A reference work created with Tremper Longman and Mark Strauss.
In Search of Sacred Places: Looking for Wisdom on Celtic Holy Island. St Paul: Bog Walk Press, 2005.
Is God Intolerant?: A Christian Response to the Call for Tolerance. Wheaton, IL: Tyndale House Publishers, 2003.
Tell Me a Story: The Life-Shaping Power of Our Stories. Bog Walk Press. (Previously published as The Healing Power of Stories. New York: Doubleday, 1996.)
Letters to My Children: A Father Passes on His Values. Downers Grove, IL: InterVarsity Press, 1989. Reprinted by Bog Walk Press.