They add that the Church in itself, or of its nature, is divided into sections; that is to say, that it is made up of several churches or distinct communities, which still remain separate, and although having certain articles of doctrine in common, nevertheless disagree concerning the remainder; that these all enjoy the same rights; and that the Church was one and unique from, at the most, the apostolic age until the first Ecumenical Councils.
Hanc uterque, si adversariorum copiae transire conarentur, exspectabat, quo aequiore loco proelium committeret.vatican.va vatican.va