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Installation of Rev. Dr. Mark R. Teasdale to Full Professor of Evangelism

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On Tuesday, March 16, 2021, at 11 a.m., Rev. Dr. Mark R. Teasdale, E. Stanley Jones Professor of Evangelism at Garrett-Evangelical Theological Seminary, will be installed as a full professor. This service will be available via Zoom and all are welcome to join. Those who register by Monday, March 15, 11:59 p.m., will be emailed the Zoom link at 8 a.m. on Tuesday, March 16.

The Board of Trustees unanimously approved the promotion of Teasdale from associate professor to full professor as the E. Stanley Jones Professor of Evangelism effective July 1, 2020. Teasdale joined the faculty in 2008 and served as the director of the doctor of ministry program from 2009-2018. He currently serves as the director of both Connectional Learning, the seminary's continuing education program, and the Course of Study School at Garrett-Evangelical.



There is no agreed upon scholarly definition of evangelism. There is, however, consensus about including both the activities and the desired outcomes of those activities in the definition. While these definitions have scholarly merit and descriptive power, they are insufficient and entail too many potential pitfalls.

The problem facing Christians today is not a lack of skills related to specific evangelistic practices, but a lack of knowledge about the core message of the Christian faith and a lack of enthusiasm about sharing what they know. Most Christians struggle to answer the question “What is the Gospel?” and even if they can articulate this, many are not convinced the message is good enough to share.

A new definition of evangelism is needed that provides a simple explanation of the gospel and that emphasizes a positive disposition toward it. This definition will both equip and motivate Christians to share their faith. To accomplish this, Teasdale offers the following definition: Evangelism is a bias held by the church for the good news of what God does in Jesus Christ to provide abundant life for all creation through the power of the Holy Spirit.


Mark R. Teasdale is the E. Stanley Jones Professor of Evangelism at Garrett-Evangelical Theological Seminary in Evanston, IL. He earned his PhD from Southern Methodist University where he was the first Harry S. Denman Fellow funded by the Foundation for Evangelism. He also earned a DMin and MDiv from Wesley Theological Seminary, and a BA in International Relations from The American University. He is an Elder in the Baltimore-Washington Conference of The United Methodist Church, where he served for a total twelve years in the roles of youth pastor, associate pastor, and senior pastor.

He is the author of Methodist Evangelism, American Salvation (Pickwick, 2014), Evangelism for Non-Evangelists: Sharing the Gospel Authentically (IVP, 2016), and Go! Becoming a Great Commission Congregation (Foundery, 2017). He has published several articles on Methodism and evangelism and has led training sessions on evangelism and Wesleyan studies throughout the United States and in Myanmar, including giving the keynote address at several Annual Conference sessions. He served as the editor of Witness: The Journal of the Academy for Evangelism in Theological Education, and is the current President of the Academy for Evangelism in Theological Education, a position he has held for two terms.

He was also selected as one of the first Billy Graham Center for Evangelism Fellows in 2016 and was made an affiliate faculty member in the Sioux Falls Seminary Kairos program in 2018. He has served on the Board of the McGaw YMCA in Evanston, IL. In 2021, he was appointed to the Human Relations Commission for the Village of Wilmette. He is married to Ana and has two children, Katarina and Luke.

March 16, 2021


“Evangelism is a bias for the good news that God is redeeming creation through Jesus Christ in the power of the Holy Spirit. It is my privilege to share this message with hundreds of people every year, equipping Christian leaders to train those under their care to present the gospel in a way that is authentic to their unique experiences of Christ, faithful to the apostolic tradition, meaningful to those who hear them, and creative in practice.

"I am deeply grateful to the many people who have created a way for me to live into this vocation, and I am honored by their gracious affirmation of my ministry through this promotion. I offer particular thanks to the Foundation for Evangelism for its ongoing support and to Garrett-Evangelical for its recognition that evangelism is an essential element of public theology and bringing about social change.”

-Rev. Dr. Mark R. Teasdale


Rev. Dr. Mark R. Teasdale Promoted to Full Professor of Evangelism
(June 5, 2020)