connected with the main stem, and all draw their nourishment from the parent stock. The Church, in fine, is called in Scripture by the beautiful title of bride or spouse of Christ,1 and the Christian law admits only of one wife. In fact, our common sense alone, apart from revelation, is sufficient to convince us that God could not be the author of various opposing systems of religion. God is essentially one. He is Truth itself. How could the God of truth affirm, for instance, to one body of Christians