Contributors

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  David B. Calhoun

  Professor
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Team Members

David B. Calhoun
Professor
David B. Calhoun, (1937-2021) was Professor Emeritus of Church History at Covenant Theological Seminary in St. Louis, Missouri.  A minister of the Presbyterian Church in America, he has taught at Covenant College, Columbia Bible College (now Columbia International University), and Jamaica Bible College (where he was also principal).  Calhoun has served with Ministries in Action in the West Indies and in Europe and as dean of the Iona Centres for Theological Study.  He was a board member (and for some years president) of Presbyterian Mission International, a mission board that assists nationals who are Covenant Seminary graduates to return to their homelands for ministry.
 
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  Karl “KJ” Johnson

  CSLI City Director, Chicago
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Team Members

Karl “KJ” Johnson
CSLI City Director, Chicago
Karl "KJ" Johnson, Lt.Col., USMC (Ret.) is the Director of the C.S. Lewis Institute in Chicago where he oversees programs that foster the discipleship of heart and mind. He’s been a C.S. Lewis Fellow since 2008 and holds a Masters in Military Studies (Marine Corps University) and two Masters of Arts from Trinity Evangelical Divinity School (Systematic Theology and Philosophy of Religion). KJ retired after 20 years in the Marine Corps where he served as a helicopter pilot, operations officer, and weapons and tactics instructor. He’s a veteran of numerous deployments as well as multiple humanitarian assistance/disaster relief missions—most notably Operation Unified Assistance (2004 tsunami) where he served as the Air Mission Commander for former Presidents George H.W. Bush and William J. Clinton.
 
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  C.S. Lewis Institute

  Author
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Team Members

C.S. Lewis Institute
Author
C.S. Lewis Institute, in the legacy of C.S. Lewis, works to develop wholehearted disciples of Jesus Christ who will articulate, defend, share, and live their faith in personal and public life. Founded in 1976 by Dr. James Houston and James R. Hiskey, the Institute provides leading teachers who address important issues of the day from the perspective of Biblical orthodoxy, while also providing discipleship for individuals in small groups.
 
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  Thomas à Kempis

  Monk
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Team Members

Thomas à Kempis
Monk
Thomas à Kempis, Author, (1380 – 1471) was a German-Dutch monk writing to other monks in pre-Reformation times. He wrote The Imitation of Christ between 1420 and 1427 with the first hand-written manuscripts appearing around 1427. By 1779 there were at least 1,800 editions and translations. John Wesley translated a version in the 1700s.
 
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  Timothy Keller

  Pastor
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Team Members

Timothy Keller
Pastor
Timothy Keller (September 23, 1950 – May 19, 2023) was the founding pastor of Redeemer Presbyterian Church in Manhattan, NY. He was also chairman and co-founder of Redeemer City to City, which has helped to launch over 200 churches in 35 cities. Keller received his MDiv from Gordon-Conwell Theological Seminary, and DMin from Westminster Theological Seminary. For over twenty years he led a diverse congregation of young professionals that has grown to a weekly attendance of over 5,000. Dr. Keller’s books include The Prodigal God: Recovering the Heart of the Christian Faith, Prayer: Experiencing Awe and Intimacy with God, The Reason for God: Belief in an Age of Skepticism and its prequel, Making Sense of GOD: An Invitation to the Skeptical.
 
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  Thomas A. Tarrants

  Author, President Emeritus, CSLI
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Team Members



Thomas A. Tarrants

Author, President Emeritus, CSLI

Thomas A. Tarrants is President Emeritus of the C.S. Lewis Institute. After serving twelve years as president and nine years as vice President, he retired from his position as Vice President for Ministry and Director, Washington Area Fellows Program, with CSLI in June 2019. He holds a Master's of Divinity Degree, as well as a Doctor of Ministry Degree in Christian Spirituality. Tom is an ordained minister in the Evangelical Church Alliance and a member of the Evangelical Theological Society. He spends his time writing, mentoring, consulting and traveling. His life story is told in Consumed by Hate, Redeemed by Love, published by Thomas Nelson Publishers.

 

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  Joel Woodruff

  President, C.S. Lewis Institute
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Team Members

Joel Woodruff
President, C.S. Lewis Institute
Joel Woodruff, President, C.S. Lewis Institute, has worked in higher education, “tent-making,” nonprofit administration, and pastoral ministries in Alaska, Israel, Hungary, France, and Northern Virginia. He served as Dean of Students, Chaplain, and Professor of Bible & Theology at European Bible Institute, where he helped train Europeans both for professional ministry and to be Christian leaders in the marketplace. Prior to joining the Institute, he was on the leadership team of Oakwood Services International, a nonprofit educational and humanitarian organization. He is a graduate of Wheaton College, earned his M.Div. from Gordon-Conwell Theological Seminary, and has a doctorate in Organizational Leadership from Nova Southeastern University. As a Parish-Pulpit Fellow, he studied Biblical Backgrounds & Archaeology in Israel for a year.
 
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  Tom Schwanda

  Professor, Senior Fellow for Christian Spirituality, CSLI
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Team Members

Tom Schwanda
Professor, Senior Fellow for Christian Spirituality, CSLI
Tom Schwanda is associate professor of Christian Formation and Ministry emeritus at Wheaton College and senior fellow for Christian Spirituality at the C. S. Lewis Institute. Tom earned a Ph.D. from Durham University, a D.Min. from Fuller, and a M. Div. from New Brunswick Theological Seminary. He also studied at Gordon-Conwell Theological Seminary. He is the author of numerous articles and book chapters and four books, including The Emergence of Evangelical Spirituality: The Age of Edwards, Newton, and Whitefield and most recently George Whitefield, New Birth to Enjoy God, in the Crossway Theologians on the Christian Life series.