William Edgar (DTh, University of Geneva) is professor of apologetics at Westminster Theological Seminary and, among other things, a professional jazz musician. His published works include Reasons of the Heart: Taking Note of Music and articles on cultural apologetics, the music of Brahms, and African-American life.

John Henderson (PhD, University of North Texas) is counseling pastor at Denton Bible Church in Denton, Texas, and a board member of the Association of Biblical Counselors and the Biblical Counseling Coalition. He is the author of Equipped to Counsel.

Vern S. Poythress (MLitt, University of Cambridge; PhD, Harvard University; DTh, University of Stellenbosch, South Africa) is distinguished professor of New Testament, biblical interpretation, and systematic theology at Westminster Theological Seminary in Philadelphia. He has authored books on a wide range of topics; his works include Symphonic Theology, Theophany, and The Mystery of the Trinity.