books.google.ca - Between 300 and 600, Christianity experienced a momentous change from persecuted cult to state religion. One of the consequences of this shift was the evolution of the role of the bishop—as the highest Church official in his city—from model Christian to model citizen. Claudia Rapp's exceptionally...http://books.google.ca/books/about/Holy_Bishops_in_Late_Antiquity.html?id=ZD-5IVXqjNoC&q=Gregory+of+Nazianzus&utm_source=gb-gplus-shareHoly Bishops in Late Antiquity
