Lyle W. Dorsett is a Professor at the Beeson School of Divinity at Samford University. He is a former faculty member of Wheaton College, and a bestselling author. His books include "A Passion for Souls: The Life of D. L. Moody" and "The Essential C. S. Lewis." Lyle and his wife, Mary, founded Christ for Children International, a mission to economically impoverished children in Mexico.