Ignatius of Antioch

Let no man deceive himself: if any one be not within the altar, he is deprived of the bread of God. For if the prayer of one or two possesses such power, how much more that of the bishop and the whole Church! He, therefore, that does not assemble with the Church, has even by this manifested his pride, and condemned himself. For it is written, "God resisteth the proud." Let us be careful, then, not to set ourselves in opposition to the bishop, in order that we may be subject to God.