Graham A. Cole is professor emeritus of biblical and systematic theology at Trinity Evangelical Divinity School. He has written numerous books including Faithful Theology: An Introduction and Against the Darkness: The Doctrine of Angels, Satan, and Demons.
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.