WatsonOverHere/Summa_Theologica huggingface dataset:
Q: Objection 1: It would seem that Christ's flesh was not infected by sin in the patriarchs. For it is written (Wis. 7:25) that "no defiled thing cometh into" Divine Wisdom. But Christ is the Wisdom of God according to 1 Cor. 1:24. Therefore Christ's flesh was never defiled by sin.

Obj. 2: Further, Damascene says (De Fide Orth. iii) that Christ "assumed the first-fruits of our nature." But in the primitive state human flesh was not infected by sin. Therefore Christ's flesh was not infected either in Adam or in the other patriarchs.

Obj. 3: Further, Augustine says (Gen. ad lit. x) that "human nature ever had, together with the wound, the balm with which to heal it." But that which is infected cannot heal a wound; rather does it need to be healed itself. Therefore in human nature there was ever something preserved from infection, from which afterwards Christ's body was formed.
Q: Objection 1: It would seem that Christ "paid tithes" in Abraham's loins. For the Apostle says (Heb. 7:6-9) that Levi, the great-grandson of Abraham, "paid tithes in Abraham," because, when the latter paid tithes to Melchisedech, "he was yet in his loins." In like manner Christ was in Abraham's loins when the latter paid tithes. Therefore Christ Himself also paid tithes in Abraham.

Obj. 2: Further, Christ is of the seed of Abraham according to the flesh which He received from His Mother. But His Mother paid tithes in Abraham. Therefore for a like reason did Christ.

Obj. 3: Further, "in Abraham tithe was levied on that which needed healing," as Augustine says (Gen. ad lit. x). But all flesh subject to sin needed healing. Since therefore Christ's flesh was the subject of sin, as stated above (A. 7), it seems that Christ's flesh paid tithes in Abraham.

Obj. 4: Further, this does not seem to be at all derogatory to Christ's dignity. For the fact that the father of a bishop pays tithes to a priest does not hinder his son, the bishop, from being of higher rank than an ordinary priest. Consequently, although we may say that Christ paid tithes when Abraham paid them to Melchisedech, it does not follow that Christ was not greater than Melchisedech.
Q: Objection 1: It would seem that the accomplishment of Christ's conception should not be attributed to the Holy Ghost, because, as Augustine says (De Trin. i), "The works of the Trinity are indivisible, just as the Essence of the Trinity is indivisible." But the accomplishment of Christ's conception was the work of God. Therefore it seems that it should not be attributed to the Holy Ghost any more than to the Father or the Son.

Obj. 2: Further, the Apostle says (Gal. 4:4): "When the fulness of time was come, God sent His Son, made of a woman"; which words Augustine expounds by saying (De Trin. iv): "Sent, in so far as made of a woman." But the sending of the Son is especially attributed to the Father, as stated in the First Part (Q. 43, A. 8). Therefore His conception also, by reason of which He was "made of a woman," should be attributed principally to the Father.

Obj. 3: Further, it is written (Prov. 9:1): "Wisdom hath built herself a house." Now, Christ is Himself the Wisdom of God; according to 1 Cor. 1:24: "Christ the Power of God and the Wisdom of God." And the house of this Wisdom is Christ's body, which is also called His temple, according to John 2:21: "But He spoke of the temple of His body." Therefore it seems that the accomplishment of Christ's conception should be attributed principally to the Son, and not, therefore, to the Holy Ghost.
Q: Whether It Should Be Said That Christ Was Conceived of ( de ) the Holy Ghost?

A: On the contrary,
It is written (Matt. 1:18): "Before they came together, she was found with child, of ( de ) the Holy Ghost."

I answer that,
Conception is not attributed to Christ's body alone, but also to Christ Himself by reason of His body. Now, in the Holy Ghost we may observe a twofold habitude to Christ. For to the Son of God Himself, who is said to have been conceived, He has a habitude of consubstantiality: while to His body He has the habitude of efficient cause. And this preposition of (
de
) signifies both habitudes: thus we say that a certain man is "of (
de
) his father." And therefore we can fittingly say that Christ was conceived of the Holy Ghost in such a way that the efficiency of the Holy Ghost be referred to the body assumed, and the consubstantiality to the Person assuming.

Reply Obj. 1: Christ's body, through not being consubstantial with the Holy Ghost, cannot properly be said to be conceived "of" (
de
) the Holy Ghost, but rather "from (
ex
) the Holy Ghost," as Ambrose says (De Spir. Sanct. ii.): "What is from someone is either from his substance or from his power: from his substance, as the Son who is from the Father; from his power, as all things are from God, just as Mary conceived from the Holy Ghost."

Reply Obj. 2: It seems that on this point there is a difference of opinion between Jerome and certain other Doctors, who assert that the Holy Ghost took the place of seed in this conception. For Chrysostom says (Hom. i in Matth. [*Opus Imperf., among the supposititious writings]): "When God's Only-Begotten was about to enter into the Virgin, the Holy Ghost preceded Him; that by the previous entrance of the Holy Ghost, Christ might be born unto sanctification according to His body, the Godhead entering instead of the seed." And Damascene says (De Fide Orth. iii): "God's wisdom and power overshadowed her, like unto a Divine seed."

But these expressions are easily explained. Because Chrysostom and Damascene compare the Holy Ghost, or also the Son, who is the Power of the Most High, to seed, by reason of the active power therein; while Jerome denies that the Holy Ghost took the place of seed, considered as a corporeal substance which is transformed in conception.

Reply Obj. 3: As Augustine says (Enchiridion xl), Christ is said to be conceived or born of the Holy Ghost in one sense; of the Virgin Mary in another--of the Virgin Mary materially; of the Holy Ghost efficiently. Therefore there was no mingling here.
Q: Objection 1: It would seem that we should not say that Christ was conceived of (
de
) the Holy Ghost. Because on Rom. 11:36: "For of Him (
ex ipso
) and by Him, and in Him, are all things," the gloss of Augustine says: "Notice that he does not say, 'of Him' (
de ipso
), but 'of Him' (
ex ipso
). For of Him (
ex ipso
), are heaven and earth, since He made them: but not of Him [de ipso, since they are not made of His substance." But the Holy Ghost did not form Christ's body of (
de
) His own substance. Therefore we should not say that Christ was conceived of (
de
) the Holy Ghost.

Obj. 2: Further, the active principle of (
de
) which something is conceived is as the seed in generation. But the Holy Ghost did not take the place of seed in Christ's conception. For Jerome says (Expos. Cathol. Fidei) [*Written by Pelagius]: "We do not say, as some wicked wretches hold, that the Holy Ghost took the place of seed: but we say that Christ's body was wrought," i.e. formed, "by the power and might of the Creator." Therefore we should not say that Christ's body was conceived of (
de
) the Holy Ghost.

Obj. 3: Further, no one thing is made of two, except they be in some way mingled. But Christ's body was formed of (
de
) the Virgin Mary. If therefore we say that Christ was conceived of (
de
) the Holy Ghost, it seems that a mingling took place of the Holy Ghost with the matter supplied by the Virgin: and this is clearly false. Therefore we should not say that Christ was conceived of (
de
) the Holy Ghost.
Q: Whether the Holy Ghost Should Be Called Christ's Father in Respect of His Humanity?

A: On the contrary,
Augustine says (Enchiridion xl): "Christ was born of the Holy Ghost not as a Son, and of the Virgin Mary as a Son."

I answer that,
The words "fatherhood," "motherhood," and "sonship," result from generation; yet not from any generation, but from that of living things, especially animals. For we do not say that fire generated is the son of the fire generating it, except, perhaps, metaphorically; we speak thus only of animals in whom generation is more perfect. Nevertheless, the word "son" is not applied to everything generated in animals, but only to that which is generated into likeness of the generator. Wherefore, as Augustine says (Enchiridion xxxix), we do not say that a hair which is generated in a man is his son; nor do we say that a man who is born is the son of the seed; for neither is the hair like the man nor is the man born like the seed, but like the man who begot him. And if the likeness be perfect, the sonship is perfect, whether in God or in man. But if the likeness be imperfect, the sonship is imperfect. Thus in man there is a certain imperfect likeness to God, both as regards his being created to God's image and as regards His being created unto the likeness of grace. Therefore in both ways man can be called His son, both because he is created to His image and because he is likened to Him by grace. Now, it must be observed that what is said in its perfect sense of a thing should not be said thereof in its imperfect sense: thus, because Socrates is said to be naturally a man, in the proper sense of "man," never is he called man in the sense in which the portrait of a man is called a man, although, perhaps, he may resemble another man. Now, Christ is the Son of God in the perfect sense of sonship. Wherefore, although in His human nature He was created and justified, He ought not to be called the Son of God, either in respect of His being created or of His being justified, but only in respect of His eternal generation, by reason of which He is the Son of the Father alone. Therefore nowise should Christ be called the Son of the Holy Ghost, nor even of the whole Trinity.

Reply Obj. 1: Christ was conceived of the Virgin Mary, who supplied the matter of His conception unto likeness of species. For this reason He is called her Son. But as man He was conceived of the Holy Ghost as the active principle of His conception, but not unto likeness of species, as a man is born of his father. Therefore Christ is not called the Son of the Holy Ghost.

Reply Obj. 2: Men who are fashioned spiritually by the Holy Ghost cannot be called sons of God in the perfect sense of sonship. And therefore they are called sons of God in respect of imperfect sonship, which is by reason of the likeness of grace, which flows from the whole Trinity.

But with Christ it is different, as stated above.

The same reply avails for the Third Objection.
Q: Objection 1: It would seem that the Holy Ghost should be called Christ's father in respect of His humanity. Because, according to the Philosopher (De Gener. Animal. i): "The Father is the active principle in generation, the Mother supplies the matter." But the Blessed Virgin is called Christ's Mother, by reason of the matter which she supplied in His conception. Therefore it seems that the Holy Ghost can be called His father, through being the active principle in His conception.

Obj. 2: Further, as the minds of other holy men are fashioned by the Holy Ghost, so also was Christ's body fashioned by the Holy Ghost. But other holy men, on account of the aforesaid fashioning, are called the children of the whole Trinity, and consequently of the Holy Ghost. Therefore it seems that Christ should be called the Son of the Holy Ghost, forasmuch as His body was fashioned by the Holy Ghost.

Obj. 3: Further, God is called our Father by reason of His having made us, according to Deut. 32:6: "Is not He thy Father, that hath possessed thee, and made thee and created thee?" But the Holy Ghost made Christ's body, as stated above (AA. 1, 2). Therefore the Holy Ghost should be called Christ's Father in respect of the body fashioned by Him.
Q: Objection 1: It would seem that the Blessed Virgin cooperated actively in the conception of Christ's body. For Damascene says (De Fide Orth. iii) that "the Holy Ghost came upon the Virgin, purifying her, and bestowing on her the power to receive and to bring forth the Word of God." But she had from nature the passive power of generation, like any other woman. Therefore He bestowed on her an active power of generation. And thus she cooperated actively in Christ's conception.

Obj. 2: Further, all the powers of the vegetative soul are active, as the Commentator says (De Anima ii). But the generative power, in both man and woman, belongs to the vegetative soul. Therefore, both in man and woman, it cooperates actively in the conception of the child.

Obj. 3: Further, in the conception of a child the woman supplies the matter from which the child's body is naturally formed. But nature is an intrinsic principle of movement. Therefore it seems that in the very matter supplied by the Blessed Virgin there was an active principle.
Q: Objection 1: It would seem that Christ's body was not formed in the first instant of its conception. For it is written (John 2:20): "Six-and-forty years was this Temple in building"; on which words Augustine comments as follows (De Trin. iv): "This number applies manifestly to the perfection of our Lord's body." He says, further (QQ. lxxxiii, qu. 56): "It is not without reason that the Temple, which was a type of His body, is said to have been forty-six years in building: so that as many years as it took to build the Temple, in so many days was our Lord's body perfected." Therefore Christ's body was not perfectly formed in the first instant of its conception.

Obj. 2: Further, there was need of local movement for the formation of Christ's body in order that the purest blood of the Virgin's body might be brought where generation might aptly take place. Now, no body can be moved locally in an instant: since the time taken in movement is divided according to the division of the thing moved, as is proved
Phys.
vi. Therefore Christ's body was not formed in an instant.

Obj. 3: Further, Christ's body was formed of the purest blood of the Virgin, as stated above (Q. 31, A. 5). But that matter could not be in the same instant both blood and flesh, because thus matter would have been at the same time the subject of two forms. Therefore the last instant in which it was blood was distinct from the first instant in which it was flesh. But between any two instants there is an interval of time. Therefore Christ's body was not formed in an instant, but during a space of time.

Obj. 4: Further, as the augmentative power requires a fixed time for its act, so also does the generative power: for both are natural powers belonging to the vegetative soul. But Christ's body took a fixed time to grow, like the bodies of other men: for it is written (Luke 2:52) that He "advanced in wisdom and age." Therefore it seems for the same reason that the formation of His body, since that, too, belongs to the generative power, was not instantaneous, but took a fixed time, like the bodies of other men.
Q: Whether Christ's Body Was Animated in the First Instant of Its Conception?

A: On the contrary,
Damascene says (De Fide Orth. iii): "At the very instant that there was flesh, it was the flesh of the Word of God, it was flesh animated with a rational and intellectual soul."

I answer that,
For the conception to be attributed to the very Son of God, as we confess in the Creed, when we say, "who was conceived by the Holy Ghost," we must needs say that the body itself, in being conceived, was assumed by the Word of God. Now it has been shown above (Q. 6, AA. 1, 2) that the Word of God assumed the body by means of the soul, and the soul by means of the spirit, i.e. the intellect. Wherefore in the first instant of its conception Christ's body must needs have been animated by the rational soul.

Reply Obj. 1: The beginning of the infusion of the soul may be considered in two ways. First, in regard to the disposition of the body. And thus, the beginning of the infusion of the soul into Christ's body was the same as in other men's bodies: for just as the soul is infused into another man's body as soon as it is formed, so was it with Christ. Secondly, this beginning may be considered merely in regard to time. And thus, because Christ's body was perfectly formed in a shorter space of time, so after a shorter space of time was it animated.

Reply Obj. 2: The soul requires due quantity in the matter into which it is infused: but this quantity allows of a certain latitude because it is not fixed to a certain amount. Now the quantity that a body has when the soul is first infused into it is in proportion to the perfect quantity to which it will attain by development: that is to say, men of greater stature have greater bodies at the time of first animation. But Christ at the perfect age was of becoming and middle stature: in proportion to which was the quantity of His body at the time when other men's bodies are animated; though it was less than theirs at the first instant of His conception. Nevertheless that quantity was not too small to safeguard the nature of an animated body; since it would have sufficed for the animation of a small man's body.

Reply Obj. 3: What the Philosopher says is true in the generation of other men, because the body is successively formed and disposed for the soul: whence, first, as being imperfectly disposed, it receives an imperfect soul; and afterwards, when it is perfectly disposed, it receives a perfect soul. But Christ's body, on account of the infinite power of the agent, was perfectly disposed instantaneously. Wherefore, at once and in the first instant it received a perfect form, that is, the rational soul.
Q: Objection 1: It would seem that Christ's body was not animated in the first instant of its conception. For Pope Leo says (Ep. ad Julian.): "Christ's flesh was not of another nature than ours: nor was the beginning of His animation different from that of other men." But the soul is not infused into other men at the first instant of their conception. Therefore neither should Christ's soul have been infused into His body in the first instant of its conception.

Obj. 2: Further, the soul, like any natural form, requires determinate quantity in its matter. But in the first instant of its conception Christ's body was not of the same quantity as the bodies of other men when they are animated: otherwise, if afterwards its development had been continuous, either its birth would have occurred sooner, or at the time of birth He would have been a bigger child than others. The former alternative is contrary to what Augustine says (De Trin. iv), where he proves that Christ was in the Virgin's womb for the space of nine months: while the latter is contrary to what Pope Leo says (Serm. iv in Epiph.): "They found the child Jesus nowise differing from the generality of infants." Therefore Christ's body was not animated in the first instant of its conception.

Obj. 3: Further, whenever there is "before" and "after" there must be several instants. But according to the Philosopher (De Gener. Animal. ii) in the generation of a man there must needs be "before" and "after": for he is first of all a living thing, and afterwards, an animal, and after that, a man. Therefore the animation of Christ could not be effected in the first instant of His conception.
Q: Whether Christ's Flesh Was First of All Conceived and Afterwards Assumed?

A: On the contrary,
Augustine says (De Fide ad Petrum xviii [*Written by Fulgentius]): "Hold steadfastly, and doubt not for a moment that Christ's flesh was not conceived in the Virgin's womb, before being assumed by the Word."

I answer that,
As stated above, we may say properly that "God was made man," but not that "man was made God": because God took to Himself that which belongs to man--and that which belongs to man did not pre-exist, as subsisting in itself, before being assumed by the Word. But if Christ's flesh had been conceived before being assumed by the Word, it would have had at some time an hypostasis other than that of the Word of God. And this is against the very nature of the Incarnation, which we hold to consist in this, that the Word of God was united to human nature and to all its parts in the unity of hypostasis: nor was it becoming that the Word of God should, by assuming human nature, destroy a pre-existing hypostasis of human nature or of any part thereof. It is consequently contrary to faith to assert that Christ's flesh was first of all conceived and afterwards assumed by the Word of God.

Reply Obj. 1: If Christ's flesh had been formed or conceived, not instantaneously, but successively, one of two things would follow: either that what was assumed was not yet flesh, or that the flesh was conceived before it was assumed. But since we hold that the conception was effected instantaneously, it follows that in that flesh the beginning and the completion of its conception were in the same instant. So that, as Augustine [*Fulgentius, De Fide ad Petrum xviii] says: "We say that the very Word of God was conceived in taking flesh, and that His very flesh was conceived by the Word taking flesh."

From the above the reply to the Second Objection is clear. For in the same moment that this flesh began to be conceived, its conception and animation were completed.

Reply Obj. 3: The mystery of the Incarnation is not to be looked upon as an ascent, as it were, of a man already existing and mounting up to the dignity of the Union: as the heretic Photinus maintained. Rather is it to be considered as a descent, by reason of the perfect Word of God taking unto Himself the imperfection of our nature; according to John 6:38: "I came down from heaven."
Q: Objection 1: It would seem that Christ's flesh was first of all conceived, and afterwards assumed. Because what is not cannot be assumed. But Christ's flesh began to exist when it was conceived. Therefore it seems that it was assumed by the Word of God after it was conceived.

Obj. 2: Further, Christ's flesh was assumed by the Word of God, by means of the rational soul. But it received the rational soul at the term of the conception. Therefore it was assumed at the term of the conception. But at the term of the conception it was already conceived. Therefore it was first of all conceived and afterwards assumed.

Obj. 3: Further, in everything generated, that which is imperfect precedes in time that which is perfect: which is made clear by the Philosopher (Metaph. ix). But Christ's body is something generated. Therefore it did not attain to its ultimate perfection, which consisted in the union with the Word of God, at the first instant of its conception; but, first of all, the flesh was conceived and afterwards assumed.