John MacArthur is an American pastor, author, and teacher known for his conservative Christian beliefs. He has served as the pastor of Grace Community Church in Sun Valley, California since 1969 and is the president of The Master's University and The Master's Seminary. MacArthur is recognized for his expository preaching style and has written numerous books on theology and Christian living. He is also the host of the radio program Grace to You, which broadcasts his sermons and teachings worldwide. MacArthur has been influential in the Evangelical community and is known for his strong stance on biblical inerrancy and the importance of scripture in the life of believers.