Reply Obj. 2: The Apostle is speaking there of the prophetic utterances.
Reply Obj. 3: Those prophets who are described as foolish and mad are not true but false prophets, of whom it is said (Jer. 3:16): "Hearken not to the words of the prophets that prophesy to you, and deceive you; they speak a vision of their own heart, and not out of the mouth of the Lord," and (Ezech. 13:3): "Woe to the foolish prophets, that follow their own spirit, and see nothing."
Reply Obj. 4: It is requisite to prophecy that the intention of the mind be raised to the perception of Divine things: wherefore it is written (Ezech. 2:1): "Son of man, stand upon thy feet, and I will speak to thee." This raising of the intention is brought about by the motion of the Holy Ghost, wherefore the text goes on to say: "And the Spirit entered into me . . . and He set me upon my feet." After the mind's intention has been raised to heavenly things, it perceives the things of God; hence the text continues: "And I heard Him speaking to me." Accordingly inspiration is requisite for prophecy, as regards the raising of the mind, according to Job 32:8, "The inspiration of the Almighty giveth understanding": while revelation is necessary, as regards the very perception of Divine things, whereby prophecy is completed; by its means the veil of darkness and ignorance is removed, according to Job 12:22, "He discovereth great things out of darkness." _______________________
SECOND ARTICLE [II-II, Q. 171, Art. 2]
Whether Prophecy Is a Habit?
Objection 1: It would seem that prophecy is a habit. For according to Ethic. ii, 5, "there are three things in the soul, power, passion, and habit." Now prophecy is not a power, for then it would be in all men, since the powers of the soul are common to them. Again it is not a passion, since the passions belong to the appetitive faculty, as stated above (I-II, Q. 22, A. 2); whereas prophecy pertains principally to knowledge, as stated in the foregoing Article. Therefore prophecy is a habit.
Obj. 2: Further, every perfection of the soul, which is not always in act, is a habit. Now prophecy is a perfection of the soul; and it is not always in act, else a prophet could not be described as asleep. Therefore seemingly prophecy is a habit.
Obj. 3: Further, prophecy is reckoned among the gratuitous graces. Now grace is something in the soul, after the manner of a habit, as stated above (I-II, Q. 110, A. 2). Therefore prophecy is a habit.
On the contrary, A habit is something "whereby we act when we will," as the Commentator [*Averroes or Ibn Roshd, 1120-1198] says (De Anima iii). But a man cannot make use of prophecy when he will, as appears in the case of Eliseus (4 Kings 3:15), "who on Josaphat inquiring of him concerning the future, and the spirit of prophecy failing him, caused a minstrel to be brought to him, that the spirit of prophecy might come down upon him through the praise of psalmody, and fill his mind with things to come," as Gregory observes (Hom. i super Ezech.). Therefore prophecy is not a habit.
I answer that, As the Apostle says (Eph. 5:13), "all that is made manifest is light," because, to wit, just as the manifestation of the material sight takes place through material light, so too the manifestation of intellectual sight takes place through intellectual light. Accordingly manifestation must be proportionate to the light by means of which it takes place, even as an effect is proportionate to its cause. Since then prophecy pertains to a knowledge that surpasses natural reason, as stated above (A. 1), it follows that prophecy requires an intellectual light surpassing the light of natural reason. Hence the saying of Micah 7:8: "When I sit in darkness, the Lord is my light." Now light may be in a subject in two ways: first, by way of an abiding form, as material light is in the sun, and in fire; secondly, by way of a passion, or passing impression, as light is in the air. Now the prophetic light is not in the prophet's intellect by way of an abiding form, else a prophet would always be able to prophesy, which is clearly false. For Gregory says (Hom. i super Ezech.): "Sometimes the spirit of prophecy is lacking to the prophet, nor is it always within the call of his mind, yet so that in its absence he knows that its presence is due to a gift." Hence Eliseus said of the Sunamite woman (4 Kings 4:27): "Her soul is in anguish, and the Lord hath hid it from me, and hath not told me." The reason for this is that the intellectual light that is in a subject by way of an abiding and complete form, perfects the intellect chiefly to the effect of knowing the principle of the things manifested by that light; thus by the light of the active intellect the intellect knows chiefly the first principles of all things known naturally. Now the principle of things pertaining to supernatural knowledge, which are manifested by prophecy, is God Himself, Whom the prophets do not see in His essence, although He is seen by the blessed in heaven, in whom this light is by way of an abiding and complete form, according to Ps. 35:10, "In Thy light we shall see light."