Dr. Steven J. Lawson is founder and president of OnePassion Ministries in Dallas. He is a Ligonier Ministries teaching fellow, professor of preaching and dean of D.Min. studies at The Master’s Seminary, and host of the Institute for Expository Preaching. He is author of many books, including The Passionate Preaching of Martyn Lloyd-Jones, John Knox: Fearless Faith, and The Moment of Truth.