Gerald L. Sittser (Ph.D., University of Chicago) is professor of theology at Whitworth University in Spokane, Washington. He is the author of The Adventure, A Cautious Patriotism, A Grace Disguised, The Will of God as a Way of Life and When God Doesn't Answer Your Prayer. He has also written many book reviews and articles. He speaks frequently at churches, college campuses, and scholarly and Christian conferences. Sittser has won numerous awards and honors including a Gold Medallion Award from the Evangelical Christian Publishers Association for his book When God Doesn't Answer Your Prayer.

Albert Haase, O.F.M., is adjunct professor of spirituality at Catholic Theological Union in Chicago, Illinois. With Mayslake Ministries he does spiritual direction, leads retreats and directs the School of Spirituality. He is the author of Coming Home to Your True Self and Enkindled: Holy Spirit, Holy Gifts (with Bridget Haase, O.S.U.). He is a former missionary to mainland China.