David Guretzki (PhD, McGill University) is professor of theology, church, and public life at Briercrest College and Seminary in Caronport, Saskatchewan, Canada. He is also a coauthor of Pocket Dictionary of Theological Terms.
Oskar Skarsaune is professor of church history at Norwegian Lutheran School of Theology in Oslo, Norway. He is the author of Incarnation: Myth or Fact? and The Proof from Prophecy: A Study in Justin Martyr's Proof-Text Tradition and editor (with Reidar Hvalvik) of Jewish Believers in Jesus.
Roger Helland is district executive coach for the Baptist General Conference in Alberta, Canada. His other books include The Journey, The Revived Church and Let the River Flow.
William J. Larkin Jr. (Ph.D., University of Durham) is professor of biblical studies at Columbia International University Seminary and School of Ministry in Columbia, South Carolina. An ordained minister in the Presbyterian Churchin America, he is the author of several books.
Brian J. Walsh serves as the Christian Reformed Church chaplain to the University of Toronto. With Richard J. Middleton, he wrote The Transforming Vision and Truth Is Stranger Than It Used to Be (both IVP). He is also the author of Langdon Gilkey (University Press of America, 1992) and Subversive Christianity (Alta Vista College Press, 1994).
Mark E. Ashton is lead pastor at Christ Community Church in Omaha, Nebraska. For several years, he was a member of InterVarsity Christian Fellowship staff, working with student groups at University of Illinois and speaking at many other colleges in the Midwest.
Ellsworth Kalas is senior professor of homiletics at Asbury Theological Seminary in Lexington, Kentucky. He is the author of many books, including Preaching the Calendar (Westminster John Knox) and Faith from the Back Side (Abingdon).
Lance Ford is a missional church leader from Kansas City, Missouri, and cofounder and director of the Sentralized Conference. He is also author of Unleader, Right Here, Right Now (with Alan Hirsch) and Missional Essentials (withBrad Brisco).
Brian McLaren is founding pastor of Cedar Ridge Community Church in the Baltimore-Washington region. He is the author of numerous books including A New Kind of Christian, A Generous Orthodoxy and Finding Our Way Again.
Mike Lueken is copastor (with Kent Carlson) of Oak Hills Church of Folsom, California. He is a graduate of Trinity Evangelical Divinity School and lives with his family in the Sacramento, California, area.