Of the Cause of Prophecy

I answer that, As stated above (Q. 171, A. 6, ad 2) prophetic foreknowledge may regard future things in two ways: in one way, as they are in themselves; in another way, as they are in their causes. Now, to foreknow future things, as they are in themselves, is proper to the Divine intellect, to Whose eternity all things are present, as stated in the First Part (Q. 14, A. 13). Wherefore such like foreknowledge of the future cannot come from nature, but from Divine revelation alone. On the other hand, future things can be foreknown in their causes with a natural knowledge even by man: thus a physician foreknows future health or death in certain causes, through previous experimental knowledge of the order of those causes to such effects. Such like knowledge of the future may be understood to be in a man by nature in two ways. In one way that the soul, from that which it holds, is able to foreknow the future, and thus Augustine says (Gen. ad lit. xii, 13): "Some have deemed the human soul to contain a certain power of divination." This seems to be in accord with the opinion of Plato [Phaed. xxvii; Civit. vi], who held that our souls have knowledge of all things by participating in the ideas; but that this knowledge is obscured in them by union with the body; yet in some more, in others less, according to a difference in bodily purity. According to this it might be said that men, whose souls are not much obscured through union with the body, are able to foreknow such like future things by their own knowledge. Against this opinion Augustine says (Gen. ad lit. xii, 13): "How is it that the soul cannot always have this power of divination, since it always wishes to have it?"

Since, however, it seems truer, according to the opinion of Aristotle, that the soul acquires knowledge from sensibles, as stated in the First Part (Q. 84, A. 6), it is better to have recourse to another explanation, and to hold that men have no such foreknowledge of the future, but that they can acquire it by means of experience, wherein they are helped by their natural disposition, which depends on the perfection of a man's imaginative power, and the clarity of his understanding.

Nevertheless this latter foreknowledge of the future differs in two ways from the former, which comes through Divine revelation. First, because the former can be about any events whatever, and this infallibly; whereas the latter foreknowledge, which can be had naturally, is about certain effects, to which human experience may extend. Secondly, because the former prophecy is "according to the unchangeable truth" [Q. 171, A. 3, Obj. 1], while the latter is not, and can cover a falsehood. Now the former foreknowledge, and not the latter, properly belongs to prophecy, because, as stated above (Q. 171, A. 3), prophetic knowledge is of things which naturally surpass human knowledge. Consequently we must say that prophecy strictly so called cannot be from nature, but only from Divine revelation.

I answer that, As the Apostle says (Rom. 13:1), "Things that are of God are well ordered [Vulg.: 'Those that are, are ordained of God.']." Now the Divine ordering, according to Dionysius [Coel. Hier. iv; Eccl. Hier. v], is such that the lowest things are directed by middle things. Now the angels hold a middle position between God and men, in that they have a greater share in the perfection of the Divine goodness than men have. Wherefore the Divine enlightenments and revelations are conveyed from God to men by the angels. Now prophetic knowledge is bestowed by Divine enlightenment and revelation. Therefore it is evident that it is conveyed by the angels.

I answer that, As stated above (A. 1), prophecy in its true and exact sense comes from Divine inspiration; while that which comes from a natural cause is not called prophecy except in a relative sense. Now we must observe that as God Who is the universal efficient cause requires neither previous matter nor previous disposition of matter in His corporeal effects, for He is able at the same instant to bring into being matter and disposition and form, so neither does He require a previous disposition in His spiritual effects, but is able to produce both the spiritual effect and at the same time the fitting disposition as requisite according to the order of nature. More than this, He is able at the same time, by creation, to produce the subject, so as to dispose a soul for prophecy and give it the prophetic grace, at the very instant of its creation.

I answer that, A good life may be considered from two points of view. First, with regard to its inward root, which is sanctifying grace. Secondly, with regard to the inward passions of the soul and the outward actions. Now sanctifying grace is given chiefly in order that man's soul may be united to God by charity. Wherefore Augustine says (De Trin. xv, 18): "A man is not transferred from the left side to the right, unless he receive the Holy Ghost, by Whom he is made a lover of God and of his neighbor." Hence whatever can be without charity can be without sanctifying grace, and consequently without goodness of life. Now prophecy can be without charity; and this is clear on two counts. First, on account of their respective acts: for prophecy pertains to the intellect, whose act precedes the act of the will, which power is perfected by charity. For this reason the Apostle (1 Cor. 13) reckons prophecy with other things pertinent to the intellect, that can be had without charity. Secondly, on account of their respective ends. For prophecy like other gratuitous graces is given for the good of the Church, according to 1 Cor. 12:7, "The manifestation of the Spirit is given to every man unto profit"; and is not directly intended to unite man's affections to God, which is the purpose of charity. Therefore prophecy can be without a good life, as regards the first root of this goodness.

If, however, we consider a good life, with regard to the passions of the soul, and external actions, from this point of view an evil life is an obstacle to prophecy. For prophecy requires the mind to be raised very high in order to contemplate spiritual things, and this is hindered by strong passions, and the inordinate pursuit of external things. Hence we read of the sons of the prophets (4 Kings 4:38) that they "dwelt together with [Vulg.: 'before']" Eliseus, leading a solitary life, as it were, lest worldly employment should be a hindrance to the gift of prophecy.

I answer that, As stated above (Q. 171, A. 1), prophecy denotes knowledge far removed from human knowledge. Now it is evident that an intellect of a higher order can know some things that are far removed from the knowledge of an inferior intellect. Again, above the human intellect there is not only the Divine intellect, but also the intellects of good and bad angels according to the order of nature. Hence the demons, even by their natural knowledge, know certain things remote from men's knowledge, which they can reveal to men: although those things which God alone knows are remote simply and most of all.

Accordingly prophecy, properly and simply, is conveyed by Divine revelations alone; yet the revelation which is made by the demons may be called prophecy in a restricted sense. Wherefore those men to whom something is revealed by the demons are styled in the Scriptures as prophets, not simply, but with an addition, for instance as "false prophets," or "prophets of idols." Hence Augustine says (Gen. ad lit. xii, 19): "When the evil spirit lays hold of a man for such purposes as these," namely visions, "he makes him either devilish, or possessed, or a false prophet."

I answer that, As the good is in relation to things, so is the true in relation to knowledge. Now in things it is impossible to find one that is wholly devoid of good. Wherefore it is also impossible for any knowledge to be wholly false, without some mixture of truth. Hence Bede says [Comment. in Luc. xvii, 12; Cf. Augustine, QQ. Evang. ii, 40] that "no teaching is so false that it never mingles truth with falsehood." Hence the teaching of the demons, with which they instruct their prophets, contains some truths whereby it is rendered acceptable. For the intellect is led astray to falsehood by the semblance of truth, even as the will is seduced to evil by the semblance of goodness. Wherefore Chrysostom says [Opus Imperf. in Matth., Hom. xix, falsely ascribed to St. John Chrysostom]: "The devil is allowed sometimes to speak true things, in order that his unwonted truthfulness may gain credit for his lie."