The Apostolic Fathers are characterized by edification as they sought to build up or strengthen believers in the faith, the Apologists by defense against attacks on Christianity, the Polemicists by attacks against heresy within the church, and the Scientific Theologians by a scientific study of theology in an effort to apply to theological investigation philosophical modes of thought then current. CLEMENT While the apostle John was writing Revelation on the Isle of Patmos or at Ephesus, Clement1