R. Kent Hughes (DMin, Trinity Evangelical Divinity School) is senior pastor emeritus of College Church in Wheaton, Illinois, and visiting professor of practical theology at Westminster Theological Seminary in Philadelphia, Pennsylvania. Hughes is also a founder of the Charles Simeon Trust, which conducts expository preaching conferences throughout North America and worldwide. He serves as the series editor for the Preaching the Word commentary series and is the author or coauthor of many books. He and his wife, Barbara, live in Wyncote, Pennsylvania, and have four children and an ever-increasing number of grandchildren. Bryan Chapell is the senior pastor of Grace Presbyterian Church (PCA) in Peoria, Illinois. He is also the host of a daily half-hour radio Bible teaching program, Unlimited Grace, and the founder and chairman of Unlimited Grace Media (unlimitedgrace.com). Bryan previously served as the president of Covenant Theological Seminary in St. Louis, Missouri, and is the author of a number of books, including Holiness by Grace.