Jeff Stark became a Jesus follower at age 25 in Macedonia, deployed with the US Army. He served on staff for seven years as Clarksville First Church of the Nazarene, five years in a small rural community in Erin, TN, and five years at Bridgeway Community Church, a multi-site church in Pekin, Il. In the summer of 2019, he moved to the heart of Chicago to serve as the Executive Director of Reach77 and Missional Director for the Chicago Central District Church of the Nazarene until August 2022. He now resides in Kankakee, Illinois.

He serves as an Associate Professor of Christian Ministry at Olivet Nazarene University and Director of Graduate Programming. He currently teaches undergraduate and graduate classes. His focus is Missional Theology and the convergence of Christianity and Culture. He offers courses in Church Planting and Evangelism, Preaching, Racial Reconciliation, Biblical Justice and Missional Leadership. He is the author of a forthcoming book from The Foundry Publishing — The News Is Good: Evangelism as a Way of Life.