J.I. Packer is regarded as one of the most influential evangelicals in North America. He is Board of Governors' Professor of Theology at Regent College in Vancouver, British Columbia and his writings include books such as Knowing God, A Quest for Godliness, Growing in Christ (Crossway) and Rediscovering Holiness. He has preached and lectured widely in Great Britain and North America and served as General Editor of the English Standard Version of the Bible published in 2001, and Theological Editor of the Study Bible version. In 2014, Packer was named Author of the Year by the Association of Logos Bookstores. He is a frequent contributor to and an executive editor of Christianity Today and… has written numerous articles published in journals such as Churchman, SouthWestern Journal, Reformation & Revival Journal and Touchstone. He received a BA, MA and PhD from Oxford University.Timothy R. Jennings, M.D., is a board certified Christian psychiatrist, master psychopharmacologist, lecturer, international speaker and author. Dr. Jennings was voted one of America�s Top Psychiatrists by the Consumers' Research Council of America in 2008, 2010 and 2011. He is a fellow of the American Psychiatric Association and President-Elect of the Tennessee Psychiatric Association. He also serves on the board of the Southern Psychiatric Association and is in private practice in Tennessee.