Tom Pennington has served as pastor-teacher at Countryside Bible Church in the Dallas area since 2003. Prior to arriving in Texas, he served 16 years at Grace Community Church, including as senior associate pastor and personal assistant to John MacArthur. Prior to that, he served as managing director of Grace to You, overseeing the ministry's day-to-day operations. He has also contributed to a number of publications, including The MacArthur Study Bible. In addition to his role as Pastor-Teacher, he is actively involved internationally in training pastors in expository preaching.

Alexey Kolomiytsev is a pastor-teacher at the Word of Grace Bible Church in Battle Ground, WA since 2002. He was born and raised in the family of a Baptist church minister in Russia. Alexey is also the head of the Word of Grace International Ministries, whose goal is to train ministers and spread Biblical preaching through modern media platforms. Alexey holds a Bachelor of Theology degree (Southeastern Bible College, Birmingham, AL) and two Master's degrees (M.Div. and Th.M.) from The Master's Seminary (Sun Valley, CA). He is a frequent conference speaker and author of numerous books and articles.