§18. How the Word and Power of God works in His human actions: by casting out devils, by Miracles, by His Birth of the Virgin.
Accordingly, when inspired writers on this matter speak of Him as eating and being born, understand 250 that the body, as body, was born, and sustained with food corresponding to its nature, while God, the Word Himself, Who p. 46 was united with the body, while ordering all things, also by the works He did in the body shewed Himself to be not man, but God the Word. But these things are said of Him, because the actual body which ate, was born, and suffered, belonged to none other but to the Lord: and because, having become man, it was proper for these things to be predicated of Him as man, to shew Him to have a body in truth, and not in seeming. 2. But just as from these things He was known to be bodily present, so from the works He did in the body He made Himself known to be Son of God. Whence also He cried to the unbelieving Jews; “If 251 I do not the works of My Father, believe Me not. But if I do them, though ye believe not Me, believe My works; that ye may know and understand that the Father is in Me, and I in the Father.” 3. For just as, though invisible, He is known through the works of creation; so, having become man, and being in the body unseen, it may be known from His works that He Who can do these is not man, but the Power and Word of God. 4. For His charging evil spirits, and their being driven forth, this deed is not of man, but of God. Or who that saw Him healing the diseases to which the human race is subject, can still think Him man and not God? For He cleansed lepers, made lame men to walk, opened the hearing of deaf men, made blind men to see again, and in a word drove away from men all diseases and infirmities: from which acts it was possible even for the most ordinary observer to see His Godhead. For who that saw Him give back 252 what was deficient to men born lacking, and open the eyes of the man blind from his birth, would have failed to perceive that the nature of men was subject to Him, and that He was its Artificer and Maker? For He that gave back that which the man from his birth had not, must be, it is surely evident, the Lord also of mens natural birth. 5. Therefore, even to begin with, when He was descending to us, He fashioned His body for Himself from a Virgin, thus to afford to all no small proof of His Godhead, in that He Who formed this is also Maker of everything else as well. For who, seeing a body proceeding forth from a Virgin alone without man, can fail to infer that He Who appears in it is Maker and Lord of other bodies also? 6. Or who, seeing the substance of water changed and transformed into wine, fails to perceive that He Who did this is Lord and Creator of the substance of all waters? For to this end He went upon the sea also as its Master, and walked as on dry land, to afford evidence to them that saw it of His lordship over all things. And in feeding so vast a multitude on little, and of His own self yielding abundance where none was, so that from five loaves five thousand had enough, and left so much again over, did He shew Himself to be any other than the very Lord Whose Providence is over all things?
Compare Orat. iii. 31, note 11.46:251
John x. 37, sq.46:252
Cf. 49. 2.