Q: Whether the Human Nature Was Assumed Through the Medium of Grace?

A: On the contrary,
Grace is an accident in the soul, as was shown above (I-II, Q. 110, A. 2). Now the union of the Word with human nature took place in the subsistence, and not accidentally, as was shown above (Q. 2, A. 6). Therefore the human nature was not assumed by means of grace.

I answer that,
In Christ there was the grace of union and habitual grace. Therefore grace cannot be taken to be the medium of the assumption of the human nature, whether we speak of the grace of union or of habitual grace. For the grace of union is the personal being that is given gratis from above to the human nature in the Person of the Word, and is the term of the assumption. Whereas the habitual grace pertaining to the spiritual holiness of the man is an effect following the union, according to John 1:14: "We saw His glory . . . as it were of the Only-begotten of the Father, full of grace and truth"--by which we are given to understand that because this Man (as a result of the union) is the Only-begotten of the Father, He is full of grace and truth. But if by grace we understand the will of God doing or bestowing something gratis, the union took place by grace, not as a means, but as the efficient cause.

Reply Obj. 1: Our union with God is by operation, inasmuch as we know and love Him; and hence this union is by habitual grace, inasmuch as a perfect operation proceeds from a habit. Now the union of the human nature with the Word of God is in personal being, which depends not on any habit, but on the nature itself.

Reply Obj. 2: The soul is the substantial perfection of the body; grace is but an accidental perfection of the soul. Hence grace cannot ordain the soul to personal union, which is not accidental, as the soul ordains the body.

Reply Obj. 3: Our word is united to our speech, by means of breathing (
spiritus
), not as a formal medium, but as a moving medium. For from the word conceived within, the breathing proceeds, from which the speech is formed. And similarly from the eternal Word proceeds the Holy Spirit, Who formed the body of Christ, as will be shown (Q. 32, A. 1). But it does not follow from this that the grace of the Holy Spirit is the formal medium in the aforesaid union.

QUESTION 7

OF THE GRACE OF CHRIST AS AN INDIVIDUAL MAN (In Thirteen Articles)

We must now consider such things as were co-assumed by the Son of God in human nature; and first what belongs to perfection; secondly, what belongs to defect.

Concerning the first, there are three points of consideration: (1) The grace of Christ; (2) His knowledge; (3) His power.

With regard to His grace we must consider two things: (1) His grace as He is an individual man; (2) His grace as He is the Head of the Church. Of the grace of union we have already spoken (Q. 2).

Under the first head there are thirteen points of inquiry:

(1) Whether in the soul of Christ there was any habitual grace?

(2) Whether in Christ there were virtues?

(3) Whether He had faith?

(4) Whether He had hope?

(5) Whether in Christ there were the gifts?

(6) Whether in Christ there was the gift of fear?

(7) Whether in Christ there were any gratuitous graces?

(8) Whether in Christ there was prophecy?

(9) Whether there was the fulness of grace in Him?

(10) Whether such fulness was proper to Christ?

(11) Whether the grace of Christ was infinite?

(12) Whether it could have been increased?

(13) How this grace stood towards the union?