Kevin G. Harney is senior pastor at Corinth Reformed Church in Byron Center, Michigan. He is author of John: An Intimate Look at the Savior, Ephesians: Brining Heaven to Earth, and co-author of the Willow Creek Interactions series, the Willow Creek New Community series, the Old Testament Challenge series, and Finding a Church You Can Love and Loving the Church You've Found. Kevin and Sherry Harney serve together at Corinth Reformed Church in Grand Rapids, Michigan, where Kevin is Senior Pastor and Sherry is the director of children's ministry staff. They are coauthors of Finding a Church You Can Love and over thirty small group study guides (Interactions and New Community) in partnership with Bill Hybels and John Ortberg. John Ortberg is a teaching pastor at Menlo Park Presbyterian Church in Menlo Park. He is the best-selling author of Everybody's Normal Till You Get to Know Them, If You Want to walk on Water, You've Got to Get Out of the Boat, Love Beyond Reason, and Old Testament Challenge. He has written for Christianity Today and is a frequent contributor to Leadership Journal. Es pastor docente de Willow Creek Community en South Barrington, Illinois. Es autor de los exitos de libreria Si quieres caminar sobre las aguas, tienes que salir de la barca y Mas alla de la razon. Ha escrito para Christianos hoy es un contribuyente frecuente para Leadership Journal.