106. In the Psalms, too, you find: “The Lord said unto my Lord.” Ps. cx. [cix.] 1. And he did not therefore deny that the Father was his Lord, because he spoke of the Son as his Lord; but therefore called the Son his Lord, that you might not think Him to be the Son, but the Lord of the prophet, as the Lord Himself showed in the Gospel, when He said: “If David in the Spirit called Him Lord, how is he his Son?” S. Matt. xxii. 43, 45. David, not the Spirit, calls Him Lord in the Spirit. Or if they falsely infer from this that the Spirit called Him Lord, they must necessarily by a like sacrilege seem to assert that the Son of God is also the Son of the Spirit.