David Joseph Platt is an American pastor and author. He is currently pastor-teacher at McLean Bible Church, and previously he was the senior pastor at the Church at Brook Hills in Birmingham, Alabama, at the time he was the youngest megachurch pastor in the United States. He is the author of the New York Times Best Seller Radical: Taking Back Your Faith from the American Dream and since then has released numerous other books. From 2014 though 2017, Platt was president of the International Mission Board. Platt founded a resource ministry, Radical.net, which promotes his books, sermons and podcasts and multiple simulcasts throughout the year and provides resources concerning persecuted believers. He is known for conducting the intensive Bible study simulcast, Secret Church, meant to imitate the Bible study experiences of the underground church.