91. Furthermore He said, “to My God and your God,” because although He and the Father are One, and the Father is His Father by possession of the same nature, whilst God began to be our Father through the office of the Son, not by virtue of nature, but of grace—still He seems to point us here to the existence in Christ of both natures, Godhead and Manhood,—Godhead of His Father, Manhood of His Mother, the former being before all things, the latter derived from the Virgin. For the first, speaking as the Son, He called God His Father, and afterward, speaking as man, named Him as God.