Article 5 — Whether the gift of understanding is found also in those who have not sanctifying grace?
Objection 1: It would seem that the gift of understanding is found also in those who have not sanctifying grace. For Augustine, in expounding the words of Ps. 118:20: My soul hath coveted to long for Thy justifications, says: Understanding flies ahead, and man’s will is weak and slow to follow. But in all who have sanctifying grace, the will is prompt on account of charity. Therefore the gift of understanding can be in those who have not sanctifying grace.
Obj. 2: Further, it is written (Dan 10:1) that there is need of understanding in a prophetic vision, so that, seemingly, there is no prophecy without the gift of understanding. But there can be prophecy without sanctifying grace, as evidenced by Matt. 7:22, where those who say: We have prophesied in Thy name, are answered with the words: I never knew you. Therefore the gift of understanding can be without sanctifying grace.
Obj. 3: Further, the gift of understanding responds to the virtue of faith, according to Isa. 7:9, following another reading: If you will not believe, you shall not understand. Now faith can be without sanctifying grace. Therefore the gift of understanding can be without it.
On the contrary, Our Lord said (John 6:45): Every one that hath heard of the Father, and hath learned, cometh to Me. Now it is by the intellect, as Gregory observes (Moral. i, 32), that we learn or understand what we hear. Therefore whoever has the gift of understanding comes to Christ, which is impossible without sanctifying grace. Therefore the gift of understanding cannot be without sanctifying grace.
I answer that, As stated above (I-II, Q. 68, AA. 1, 2) the gifts of the Holy Spirit perfect the soul, according as it is amenable to the motion of the Holy Spirit. Accordingly, then, the intellectual light of grace is called the gift of understanding, insofar as man’s understanding is easily moved by the Holy Spirit, the consideration of which movement depends on a true apprehension of the end. Therefore, unless the human intellect be moved by the Holy Spirit so far as to have a right estimate of the end, it has not yet obtained the gift of understanding, however much the Holy Spirit may have enlightened it in regard to other truths that are preambles to the faith.
Now to have a right estimate about the last end one must not be in error about the end, and must adhere to it firmly as to the greatest good: and no one can do this without sanctifying grace; even as in moral matters a man has a right estimate about the end through a habit of virtue. Therefore no one has the gift of understanding without sanctifying grace.
Reply Obj. 1: By understanding Augustine means any kind of intellectual light, that, however, does not fulfill all the conditions of a gift, unless the mind of man be so far perfected as to have a right estimate about the end.
Reply Obj. 2: The understanding that is requisite for prophecy is a kind of enlightenment of the mind with regard to the things revealed to the prophet: but it is not an enlightenment of the mind with regard to a right estimate about the last end, which belongs to the gift of understanding.
Reply Obj. 3: Faith implies merely assent to what is proposed, but understanding implies a certain perception of the truth, which perception, except in one who has sanctifying grace, cannot regard the end, as stated above. Hence the comparison fails between understanding and faith.
Chapter 1487 of 3726