The Head and the body are Christ wholly and entirely. The Head is the only begotten Son of God, the body is His Church; the bridegroom and the bride, two in one flesh. All who dissent from the Scriptures concerning Christ, although they may be found in all places in which the Church is found, are not in the Church; and again all those who agree with the Scriptures concerning the Head, and do not communicate in the unity of the Church, are not in the Church.

St. Augustine of Hippo
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