Orth.—I have observed more than once that both the Divine and the human are ascribed to the one Person. It is in accordance with this position that the thrice blessed Fathers, after teaching how we should believe in the Father, and then passing on to the person of the Son, did not immediately add “and in the Son of God,” although it would have very naturally followed that after defining what touches God the Father they should straightway have introduced the name of Son. But their object was to give us at one and the same time instruction on the theology and on the œconomy, lest there should be supposed to be any distinction between the Person of the Godhead and the Person of the Manhood. On this account they added to their statement concerning the Father that we must believe also in our Lord Jesus Christ, the Son of God. Now after the incarnation God the Word is called Christ, for this name includes alike all that is proper to the Godhead and to the manhood. We recognise nevertheless that some properties belong to the one nature and some to the others, and this may at once be understood from the actual terms of the Creed. For tell me: to what do you apply the phrase “of the substance of the Father”? to the Godhead, or to the nature that was fashioned of the seed of David?