St. John Chrysostom (347 - 407), was one of the most important Early Church Fathers, who served first as priest in Antioch and then as Archbishop of Constantinople. He is known for his sharp preaching, and his denunciation of the moral shortcomings of authority in the church and the state, which ultimate led to his untimely death. He is also famous for the Liturgy used by the Eastern Orthodox church in almost every service, which bears his name: the...