JOHN F. WALVOORD (A.B., D.D., Wheaton College; A.M., Texas Christian University; Th.B., Th.M., Th.D., Dallas Theological Seminary), former president of Dallas Theological Seminary and editor of Bibliotheca Sacra, America's oldest theological quarterly, was recognized as one of the leading evangelical theologians in America and an authority on systematic theology and eschatology. His academic background and extensive travel in the Middle East greatly enriched his theological and eschatological studies. He authored numerous books on theology and biblical prophecy, including The Revelation of Jesus Christ, Jesus Christ Our Lord, and Daniel: The Key to Prophetic Revelation.

DR. CHARLIE DYER served for thirty-three years on the faculty and in the administration of three different institutions, including twenty years at Dallas Theological Seminary and ten years as Provost of the Moody Bible Institute. In 2010, Charlie became Professor-at-Large of Bible for Moody Bible Institute and host of The Land and the Book radio program, which is heard on more than 350 stations across the United States. For much of his time in ministry, Charlie has taken groups to Israel and the other lands of the Bible. In addition to his speaking, teaching, and guiding, Charlie has authored or coauthored numerous books, including The Rise of Babylon, What's Next?, The Christian Traveler's Guide to the Holy Land, 30 Days in the Land with Jesus, 30 Days in the Land of the Psalms, A Voice in the Wilderness, The ISIS Crisis, and Clash of Kingdoms. He also contributed to The Bible Knowledge Commentary, Nelson's Old Testament Survey, and The Moody Bible Commentary.