Mark R. Glanville (PhD, Bristol University) is associate professor of pastoral theology at Regent College, Vancouver, and an Old Testament scholar. He is the author of Adopting the Stranger as Kindred in Deuteronomy and Freed to Be God's Family: The Book of Exodus and has written articles for a variety of publications including the Journal of Biblical Literature, Refuge Journal, Journal of Missional Practice, Christian Educators Journal, Evangelicals for Social Action, Faith Today, The Light Magazine, and The Presbyterian Pulse.

Glanville previously ministered in a missional urban community, Grandview Calvary Baptist Church, Vancouver, and was a professor of congregational theology at the Missional Training Center in Phoenix. He is a trained jazz pianist and lives in Vancouver, Canada, with his wife, Erin, and their two children.

Rich Nathan is senior pastor of Vineyard Columbus. Prior to pastoring, Rich taught business law at The Ohio State University. He is a graduate of Case Western Reserve University in Cleveland, Ohio, and received his Juris Doctorate with honors from The Ohio State University College of Law in 1980. Rich has served on the Vineyard’s national board for nearly two decades and is currently serving as the Large Church Task Force leader for the Vineyard. He is a popular national and international conference speaker. Rich wrote Who is My Enemy? Welcoming People the Church Rejects and coauthored Empowered Evangelicals with Ken Wilson. He has written numerous articles in publications such as Leadership. Rich was born and raised in New York City. He and his wife, Marlene, have been married for over 35 years. They have two children and six grandchildren.

John Koessler (DMin, Trinity International University) is chair and professor of pastoral studies at the Moody Bible Institute in Chicago, Illinois, where he has served for over twenty years. He is the author of several books, including The Surprising Grace of Disappointment, True Discipleship, God Our Father, and A Stranger in the House of God. He is the general editor of The Moody Handbook of Preaching and Foundational Faith, and has written for publications like Christianity Today, Discipleship Journal, Leadership, and Decision. Previously, John served as a pastor at Valley Chapel in Green Valley, Illinois, and served as consulting editor for Moody Magazine. He has made numerous radio and broadcast appearances, and is a frequent speaker at pastors' conferences. He and his wife, Jane, live in northwest Indiana and have two sons.