Thomas Aquinas - Summa Theologica, Part III (Tertia Pars)

Reply Obj. 2: Augustine thus (Contra Faust. xxiii) replies to Faustus, who urged this objection; "By no means," says he, "does the Catholic Faith, which believes that Christ the Son of God was born of a virgin, according to the flesh, suppose that the same Son of God was so shut up in His Mother's womb, as to cease to be elsewhere, as though He no longer continued to govern heaven and earth, and as though He had withdrawn Himself from the Father. But you, Manicheans, being of a mind that admits of nought but material images, are utterly unable to grasp these things." For, as he again says (Ep. ad Volus. cxxxvii), "it belongs to the sense of man to form conceptions only through tangible bodies, none of which can be entire everywhere, because they must of necessity be diffused through their innumerable parts in various places . . . Far otherwise is the nature of the soul from that of the body: how much more the nature of God, the Creator of soul and body! . . . He is able to be entire everywhere, and to be contained in no place. He is able to come without moving from the place where He was; and to go without leaving the spot whence He came."

Reply Obj. 3: There is no uncleanness in the conception of man from a woman, as far as this is the work of God: wherefore it is written (Acts 10:15): "That which God hath cleansed do not thou call common," i.e. unclean. There is, however, a certain uncleanness therein, resulting from sin, as far as lustful desire accompanies conception by sexual union. But this was not the case with Christ, as shown above (Q. 28, A. 1). But if there were any uncleanness therein, the Word of God would not have been sullied thereby, for He is utterly unchangeable. Wherefore Augustine says (Contra Quinque Haereses v): "God saith, the Creator of man: What is it that troubles thee in My Birth? I was not conceived by lustful desire. I made Myself a mother of whom to be born. If the sun's rays can dry up the filth in the drain, and yet not be defiled: much more can the Splendor of eternal light cleanse whatever It shines upon, but Itself cannot be sullied." _______________________

FIFTH ARTICLE [III, Q. 31, Art. 5]

Whether the Flesh of Christ Was Conceived of the Virgin's Purest

Blood?

Objection 1: It would seem that the flesh of Christ was not conceived of the Virgin's purest blood: For it is said in the collect (Feast of the Annunciation) that God "willed that His Word should take flesh from a Virgin." But flesh differs from blood. Therefore Christ's body was not taken from the Virgin's blood.

Obj. 2: Further, as the woman was miraculously formed from the man, so Christ's body was formed miraculously from the Virgin. But the woman is not said to have been formed from the man's blood, but rather from his flesh and bones, according to Gen. 2:23: "This now is bone of my bones, and flesh of my flesh." It seems therefore that neither should Christ's body have been formed from the Virgin's blood, but from her flesh and bones.

Obj. 3: Further, Christ's body was of the same species as other men's bodies. But other men's bodies are not formed from the purest blood but from the semen and the menstrual blood. Therefore it seems that neither was Christ's body conceived of the purest blood of the Virgin.

On the contrary, Damascene says (De Fide Orth. iii) that "the Son of God, from the Virgin's purest blood, formed Himself flesh, animated with a rational soul."

I answer that, As stated above (A. 4), in Christ's conception His being born of a woman was in accordance with the laws of nature, but that He was born of a virgin was above the laws of nature. Now, such is the law of nature that in the generation of an animal the female supplies the matter, while the male is the active principle of generation; as the Philosopher proves (De Gener. Animal. i). But a woman who conceives of a man is not a virgin. And consequently it belongs to the supernatural mode of Christ's generation, that the active principle of generation was the supernatural power of God: but it belongs to the natural mode of His generation, that the matter from which His body was conceived is similar to the matter which other women supply for the conception of their offspring. Now, this matter, according to the Philosopher (De Gener. Animal.), is the woman's blood, not any of her blood, but brought to a more perfect stage of secretion by the mother's generative power, so as to be apt for conception. And therefore of such matter was Christ's body conceived.

Reply Obj. 1: Since the Blessed Virgin was of the same nature as other women, it follows that she had flesh and bones of the same nature as theirs. Now, flesh and bones in other women are actual parts of the body, the integrity of which results therefrom: and consequently they cannot be taken from the body without its being corrupted or diminished. But as Christ came to heal what was corrupt, it was not fitting that He should bring corruption or diminution to the integrity of His Mother. Therefore it was becoming that Christ's body should be formed not from the flesh or bones of the Virgin, but from her blood, which as yet is not actually a part, but is potentially the whole, as stated in De Gener. Animal. i. Hence He is said to have taken flesh from the Virgin, not that the matter from which His body was formed was actual flesh, but blood, which is flesh potentially.

Reply Obj. 2: As stated in the First Part (Q. 92, A. 3, ad 2), Adam, through being established as a kind of principle of human nature, had in his body a certain proportion of flesh and bone, which belonged to him, not as an integral part of his personality, but in regard to his state as a principle of human nature. And from this was the woman formed, without detriment to the man. But in the Virgin's body there was nothing of this sort, from which Christ's body could be formed without detriment to His Mother's body.

Reply Obj. 3: Woman's semen is not apt for generation, but is something imperfect in the seminal order, which, on account of the imperfection of the female power, it has not been possible to bring to complete seminal perfection. Consequently this semen is not the necessary matter of conception; as the Philosopher says (De Gener. Animal. i): wherefore there was none such in Christ's conception: all the more since, though it is imperfect in the seminal order, a certain concupiscence accompanies its emission, as also that of the male semen: whereas in that virginal conception there could be no concupiscence. Wherefore Damascene says (De Fide Orth. iii) that Christ's body was not conceived "seminally." But the menstrual blood, the flow of which is subject to monthly periods, has a certain natural impurity of corruption: like other superfluities, which nature does not heed, and therefore expels. Of such menstrual blood infected with corruption and repudiated by nature, the conception is not formed; but from a certain secretion of the pure blood which by a process of elimination is prepared for conception, being, as it were, more pure and more perfect than the rest of the blood. Nevertheless, it is tainted with the impurity of lust in the conception of other men: inasmuch as by sexual intercourse this blood is drawn to a place apt for conception. This, however, did not take place in Christ's conception: because this blood was brought together in the Virgin's womb and fashioned into a child by the operation of the Holy Ghost. Therefore is Christ's body said to be "formed of the most chaste and purest blood of the Virgin." _______________________

SIXTH ARTICLE [III, Q. 31, Art. 6]

Whether Christ's Body Was in Adam and the Other Patriarchs, As to

Something Signate?

Objection 1: It would seem that Christ's body was in Adam and the patriarchs as to something signate. For Augustine says (Gen. ad lit. x) that the flesh of Christ was in Adam and Abraham "by way of a bodily substance." But bodily substance is something signate. Therefore Christ's flesh was in Adam, Abraham, and the other patriarchs, according to something signate.