Saint Severus, the exiled Patriarch of Antioch who took refuge in Egypt, is considered one of the key post-Chalcedon Theologians of the Oriental Orthodox Church. Subdeacon Peter Theodore Farrington ( ), well-known for his writings and studies in the issue of Orthodox Unity, has contributed this article on the Orthodox Christology of St. Severus of Antioch. For more information on Orthodox Unity, please visit his site: . His criticism of Chalcedon was never based on the acceptance in any form of the heresy of Eutyches. Indeed in his work, Philalethes, or the Lover of Truth, he explained that,