“But who, hearing that the Word made for Himself a passible body, not of Mary, but of His own substance, would call the sayer of these things a Christian? Who has invented so unfounded an impiety, as even to think and to say that they who affirm the Lord’s body to be of Mary, conceive no longer of a Trinity, but of a quaternity in the godhead? As though they that are of this opinion described the flesh which the Saviour clothed himself with of Mary as of the substance of the Trinity.