Ray Ortlund received his  Th.M. from Dallas Theological Seminary, M.A. from The University of California, Berkeley, and Ph.D. from the University of Aberdeen, Scotland. Pastor Ortlund served as Associate Professor of Old Testament and Semitic Languages, Trinity Evangelical Divinity School, Deerfield, Illinois from 1989-1998. He currently serves as pastor at Immanuel Church, Nashville, Tennessee (an Acts 29 church) and as a Council member with The Gospel Coalition. Having provided the study notes for the ESV Study Bible, Pastor Ortlund is considered one of the preeminent scholars in the world on the book of Isaiah.

Dr. Timothy George, founding Dean and Professor of Divinity at Beeson Divinity School in Birmingham, Alabama. Regarded as one of the most prominent evangelical voices in the church today, Timothy George has been at Beeson since its inception in 1988. He also serves as Executive Editor of Christianity Today, and on the editorial advisory boards of The Harvard Theological Review, Christian History and Books & Culture. An ordained Baptist minister, he pastored churches in Tennessee, Alabama, and Massachusetts. A highly sought-after preacher and speaker as well as a prolific author, Dr. George has written more than 20 books. His Theology of the Reformers is the standard textbook in its field in many schools and seminaries. Dr. George earned his PhD from Harvard University.

After graduation from Vanderbilt, Mary Wilson served in the youth ministry at Second Presbyterian church in Memphis, TN. She then pursued further study at Gordon-Conwell Theological Seminary and while in Massachusetts served in the youth ministry of her local church. Upon graduating in 2009 with a Masters of Divinity and a Masters in Theology (Old Testament), she joined the staff at First Presbyterian in Baton Rouge, Louisiana as the Director of Women in Ministry where she focuses on Biblical exposition and discipleship of women of all ages and life-stages, including youth and their parents.