Aaron L. Lumpkin (PhD candidate, Southeastern Baptist Theological Seminary) serves as associate dean of students and campus minister at Missouri Baptist University in St. Louis, Missouri. He also serves on the pastoral team of Church of the Redeemer, St. Louis. He’s the co-author of The Sum and Substance of the Gospel: The Christ-Centered Piety of Charles Haddon Spurgeon . He and his wife, Sara, have four children.