David Jackman (MA, Cambridge University) is a renowned Christian speaker and author. In addition to serving as a visiting lecturer at London's Oak Hill Theological College, he is also a former president of The Proclamation Trust, a ministry dedicated to encouraging and equipping Bible teachers around the world. 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.