John F. MacArthur, Jr. (born June 14, 1939 in Los Angeles, California) is an American Reformed evangelical writer and minister, most noted for his radio program entitled Grace to You. MacArthur is a fifth-generation pastor, a popular author and conference speaker, and has served as pastor-teacher of Grace Community Church in Sun Valley, California since 1969, and as President of The Master's College (and the related Master's Seminary) in Santa Clarita, California.