You are asking too much here. When is this thesis due? In short the 1st century church put the kingdom of God above the authority of the state. From about the 6th century to the early middle ages the church became more of an extension of the state to promote its interests. Around the middle ages the church sometimes influenced the political policy of the state and lead to a split in the churches as when King Henry the 8th established the church of England to agree more with his political and cultural views. The protestant reformation soon began where the authority of scripture was elevated somewhat back to its higher place than the state. “Render to Caesar the things of Caesar and to God the things of God”, is a good summery of the proper relationship of the church and government. I see the older high type church, including the Eastern church, still centering on a special priesthood and liturgy similar to the Jewish Old Testament temple model. Most of the western churches emphasize the individual priesthood of all believers with no one earthly representative taking the place of a high priest office but keeping Christ as the head of the church. Thus the proliferation of denominations and nondenominational churches.