Dr. Steven J. Lawson is founder and president of OnePassion Ministries. He is a Ligonier Ministries teaching fellow, director of the doctor of ministry program at The Master’s Seminary, and host of the Institute for Expository Preaching. He has written numerous books, including The Passionate Preaching of Martyn Lloyd-Jones, The Evangelistic Zeal of George Whitefield, John Knox: Fearless Faith, and The Moment of Truth. He is on Twitter @DrStevenJLawson.