C. Leonard Allen serves as dean of the College of Bible and Ministry at Lipscomb University in Nashville. He taught theology, ethics, and philosophy for many years at Abilene Christian University, Biola University, Fuller Theological Seminary, and John Brown University. He has spoken widely on college campuses and in churches over the past thirty-five years on biblical, historical, and theological themes. He is the author of numerous books, including The Cruciform Church, Distant Voices, Things Unseen, Poured Out, The Bookroom: Remembrance and Forgiveness - A Memoir, and most recently, Faithful Defiance.

John Mark Hicks is a professor of theology at Lipscomb University in Nashville, Tennessee. He has taught for thirty-eight years in schools associated with the Churches of Christ. He has lectured in twenty countries and forty states, and he has published fifteen books, including Around the Bible in 80 Days, Embracing Creation, and A Gathered People.