Steven L. Porter serves as Professor of Theology and Philosophy at Talbot School of Theology and Rosemead School of Psychology, Biola University. He is also the editor of the Journal of Spiritual Formation and Soul Care. Gary W. Moon is the Executive Director of the Martin Institute for Christianity and Culture and the Dallas Willard Center for Christian Spiritual Formation at Westmont College. His research focuses on the theoretical and practical integration of psychology and theology. J. P. Moreland is Distinguished Professor of Philosophy at Talbot School of Theology, Biola University. He has authored and coauthored over thirty books, including Love Your God with All Your Mind, and more than seventy journal articles.