John MacArthur is the pastor-teacher of Grace Community Church in Sun Valley, California; chancellor of The Master's University and Seminary; and featured teacher for the Grace to You media ministry, which reaches millions worldwide. John has also written many bestselling books, including The Gospel According to Jesus. He and his wife, Patricia, have 4 married children and 15 grandchildren.

Nathan Busenitz is the executive vice president and provost of The Master's Seminary, located on the campus of Grace Community Church. He also serves as part of the pastoral staff at the church and has written or contributed to numerous books, including Right Thinking in a World Gone Wrong. He and his wife, Beth, have 4 children.