The first six ecumenical councils, from Nicea to III Constantinople, show Christians slowly developing a way for them to best express the basic elements of their faith. It was not an easy process. There were many who took elements of revelation and over-extended them in a way to ignore or reject other elements of revelation, leading to some sort of heresy. There were terms established by the councils, like homousios, which became normative, while there were other expressions of Christian... Read more