Stephen N. Williams is Honorary Professor of Theology at Queen's University, Belfast, and professor emeritus of systematic theology at Union Theological College, Belfast. He has taught in theology, bioethics, and intellectual history and is the author of The Election of Grace: A Riddle without a Resolution?

Susan L. Williams works privately as a pastoral counselor, specializing in acute and developmental trauma. She received her PhD from the University of Ulster for narrative research carried out in the intensive care unit at the Royal Hospital in Belfast. The study was subsequently published as Life after a Critical Incident in Hospital: An Exploration in the Language of Trauma.

D. A. Carson is the series editor of Questions for Restless Minds. He is professor emeritus of New Testament at Trinity Evangelical Divinity School, cofounder of The Gospel Coalition, and author of numerous books, including The God Who Is There: Finding Your Place in God's Story.