John MacArthur is the pastor-teacher of Grace Community Church in Sun Valley, California, president of the Master's College and Seminary, and featured teacher with the Grace to You media ministry. In more than four decades of ministry, John has written dozens of bestselling books, including The MacArthur Study Bible, The Gospel According to Jesus, and Slave. He and his wife, Patricia, have four married children and fifteen grandchildren.Popular teen speaker, Chad Eastham, speaks to thousands of girls each year on The Revolve Tour � . Chad has written an award-winning health curriculum and several books for teens.