Craig M. Gay (PhD, Boston University) is professor of interdisciplinary studies at Regent College in Vancouver, Canada. He is the author of a variety of books, including Dialogue, Catalogue and Monologue: Personal, Impersonal and Depersonalizing Ways to Use Words; Cash Values: The Value of Money and the Nature of Worth; The Way of the (Modern) World: Or, Why It's Tempting to Live as If God Doesn't Exist; and With Liberty and Justice for Whom? The Recent Evangelical Debate Over Capitalism.

Christian George joined the faculty of OBU in 2011 as the Jewell and Joe L. Huitt Assistant Professor of Religious Education. He received his PhD in theology from the University of St. Andrews, Scotland, where he studied the christology of Charles Spurgeon. George received his Master of Divinity degree from Beeson Divinity School in Birmingham, Alabama, and his bachelor´s degree from Samford University. George is the author of several books including Sex, Sushi, and Salvation, Godology, and Sacred Travels. He has contributed to the Journal of Theological Studies, Theology in Scotland, and Perichoresis Journal of Theology, and also to popular theological magazines such as Conversations and Modern Reformation. His work has been featured in Christianity Today, the Christian Century, and Preaching, and he has been interviewed on Moody Broadcasting Radio and other syndicated shows in the U.S. and throughout the world. George preaches and speaks regularly throughout North America and Europe in churches, at spiritual retreats, at youth and college camps, and in university chapel services. George's passion for world evangelism has taken him to more than thirty countries for short-term mission work. In his spare time, George enjoys ping pong, martial arts, jazz piano, golf, and racquetball.