Dan R. Crawford is professor of Evangelism and Spiritual Formation and Chair of Prayer and Spiritual Formation at Southwestern Baptist Theological Seminary, Fort Worth, Texas. He is the author of DiscipleShape, The Prayer-Shaped Disciple, and Night of Tragedy, Dawning of Light. He has led numerous extended prayer walks throughout Asia.
Calvin Miller is professor of Preaching and Pastoral Ministry at Beeson Divinity School in Birmingham, Alabama. He is the author of numerous books, including the best selling, The Singer and The Singer Trilogy.Other books include: The Words of Christ: An Everyday Journey with Jesus, Into the Depths of God, The Empowered Leader,and The Empowered Communicator.