Dr. John Rao discusses early Christianity and the Greco-Roman world and the problems of the New Christian Order. There were many other problems that the emerging Christian order had to face besides Arianism. In this talk, Dr. John Rao discusses three of these of importance in the western part of the Empire – Donatism, Priscillianism and Pelagianism – and one revealing the kind of Church-State struggles which would follow the final condemnation of Arianism – the difficulties faced by St. John Chrysostom, Patriarch of Constantinople.