Paul J. Dunbar is the primary author of this book. He teaches for Biblical Theological Seminary and Eastern University, both near Philadelphia, Pennsylvania. He has also served for several decades as a senior pastor in several evangelical denominations, including his current ministry in central Pennsylvania.

Anthony L. Blair is President and Professor of Church History at Evangelical Theological Seminary, Myerstown, Pennsylvania. He has also been in church ministry as a pastor, church planter, and superintendent for nearly thirty years. He is the author of Church and Academy in Harmony (Pickwick Publications, 2010).