Don Carson is emeritus professor of New Testament at Trinity Evangelical Divinity School in Deerfield, Illinois, and cofounder and theologian-at-large of The Gospel Coalition. He has edited and authored numerous books. He and his wife, Joy, have two children.

Julius Kim (MDiv, Westminster Seminary California; PhD, Trinity Evangelical Divinity School) is president of The Gospel Coalition. Julius also serves as associate pastor of New Life Presbyterian Church and visiting professor of practical theology at Westminster Seminary California, where he previously served as dean of students. He is the author of Preaching the Whole Counsel of God and numerous articles. Julius and his wife, Ji Hee, have two daughters and live in Escondido, California.

John Piper serves as founder and lead teacher at Desiring God and is chancellor of Bethlehem College & Seminary. For 33 years, Piper served as pastor of Bethlehem Baptist Church, and he is a Council member of The Gospel Coalition. He has authored more than 50 books, and more than 30 years of his preaching and writing are available free of charge at desiringGod.org. Piper resides in the Minneapolis area with his wife of 51 years, and has five children and 14 grandchildren.