Ray Ortlund is the president of Renewal Ministries, the pastor to pastors at Immanuel Nashville Church, and a canon theologian with the Anglican Church in North America. He is the author of several books, including Marriage and the Mystery of the Gospel; The Death of Porn; and the Preaching the Word commentaries on Isaiah and Proverbs. He is also a contributor to the ESV Study Bible. Ray and his wife, Jani, have been married for fifty years. Sam Allberry is the associate pastor at Immanuel Nashville. He is the author of various books, including What God Has to Say about Our Bodies and Is God Anti-Gay?; and the cohost of the podcast You’re Not Crazy: Gospel Sanity for Young Pastors. He is a fellow at the Keller Center for Cultural Apologetics. Russell Moore (PhD, The Southern Baptist Theological Seminary) is public theologian at Christianity Today and director of Christianity Today’s Public Theology Project. He is a widely-sought commentator and the author of several books, including The Kingdom of Christ; Adopted for Life; and Tempted and Tried. Moore blogs regularly at RussellMoore.com and tweets at @drmoore. He and his wife, Maria, have five sons.