Matthew 7:16

The Lord had before commanded His Apostles, that they should not do their alms, prayers, and fastings before men, as the hypocrites; and that they might know that all these things may be done in hypocrisy, He speaks saying, "Take heed of false prophets."

When the Lord had said that there were few that find the strait gate and narrow way, that heretics, who often commend themselves because of the smallness of their numbers, might not here intrude themselves, He straightway subjoins, "Take heed of false prophets."

Having taught that the gate is strait, because there are many that pervert the way that leads to it, He proceeds, "Take heed of false prophets." In the which that they might be the more careful, He reminds them of the things that were done among their fathers, calling them "false prophets;" for even in that day the like things fell out.

13] is said, because there should be no prophecy concerning Christ after He was come. Prophets indeed there have been and are, but not prophesying of Christ, rather interpreting the things which had been prophesied of Christ by the ancients, that is by the doctors of the Churches. For no man can unfold prophetic meaning, but the Spirit of prophecy. The Lord then knowing that there should be false teachers, warns them of divers heresies, saying, "Take heed of false prophets." And forasmuch as they would not be manifest Gentiles, but lurk under the Christian name, He said not "See ye," but, "Take heed." For a thing that is certain is simply seen, or looked upon; but when it is uncertain it is watched or narrowly considered. Also He says "Take heed," because it is a sure precaution of security to know him whom you avoid. But his form of warning, "Take heed," does not imply that the Devil will introduce heresies against God's will, but by His permission only; but because He would not choose servants without trial, therefore He sends them temptation; and because He would not have them perish through ignorance, He therefore warns them before hand. Also that no heretical teacher might maintain that He spoke here of Gentile and Jewish teachers and not of them, He adds, "who come to you in sheep's clothing." Christians are called sheep, and the sheep's clothing is a form of Christianity and of feigned religion. And nothing so casts out all good as hypocrisy; for evil that puts on the semblance of good, cannot be provided against, because it is unknown. Again, that the heretic might not allege that He here speaks of the true teachers which were yet sinners, He adds, "But inwardly they are ravening wolves." But Catholic teachers should they indeed have been sinners, are spoken of as servants of the flesh, yet not as ravening wolves, because it is not their purpose to destroy Christians. Clearly then it is of heretical teachers that He speaks; for they put on the guise of Christians, to the end they may tear in pieces the Christian with the wicked fangs of seduction. Concerning such the Apostle speaks, "I know that after my departure there will enter among you grievous wolves, not sparing the flock." [Acts 20:29]

Yet He may seem here to have aimed under the title of "false prophets," not so much at the heretic, as at those who, while their life is corrupt, yet wear an outward face of virtuousness; whence it is said, "By their fruits ye shall know them." For among heretics it is possible many times to find a good life, but among those I have named never.

Wherefore it is justly asked, what fruits then He would have us look to? For many esteem among fruits some things which pertain to the sheep's clothing, and in this manner are deceived concerning wolves. For they practise fasting, almsgiving, or praying, which they display before men, seeking to please those to whom these things seem difficult. These then are not the fruits by which He teaches us to discern them. Those deeds which are done with good intention, are the proper fleece of the sheep itself, such as are done with bad intention, or in error, are nothing else than a clothing of wolves; but the sheep ought not to hate their own clothing because it is often used to hide wolves. What then are the fruits by which we may know an evil tree? The Apostle says, "The works of the flesh are manifest, which are, fornication, uncleanness, &c." [Gal 5:19] And which are they by which we may know a good tree? The same Apostle teaches, saying, "The fruits of the Spirit are love, joy, peace."

The fruits of a man are the confession of his faith and the works of his life; for he who utter according to God the words of humility and a true confession, is the sheep; but he who against the truth howls forth blasphemies against God is the wolf.

What is here spoken of false prophets we may apply to all whose dress and speech promise one thing, and their actions exhibit another. But it is specially to be understood of heretics, who by observing temperance, chastity, and fasting, surround themselves as it were with a garment of sanctity, but inasmuch as their hearts within them are poisoned, they deceive the souls of the more simple brethren.

non occ.: But from their actions we may conjecture whether this their outward appearance is put on for display. For when by any temptations those things are withdrawn or denied them which they had either attained or sought to attain by this evil, then needs must that it appear whether they be the wolf in sheep's clothing, or the sheep in his own.

Also the hypocrite is restrained by peaceful times of Holy Church, and therefore appears clothed with godliness; but let any trial of faith ensue, straight the wolf ravenous at heart strips himself of his sheep's skin, and shews by persecuting how great his rage against the good.

And the hypocrite is easily discerned; for the way they are commanded to walk is a hard way, and the hypocrite is loth to toil. And that you may not say that you are unable to find out them that are such, He again enforces what He had said by example from men, saying, "Do men gather grapes of thorns, or figs of thistles?"

The grape had in it a mystery of Christ. As the bunch sustains many grapes held together by the woody stem, so likewise Christ holds many believers joined to Him by the wood of the Cross. The fig again is the Church which binds many faithful by a sweet embrace of charity, as the fig contains many seeds inclosed in one skin. The fig then has these significations, namely, love in its sweetness, unity in the close adhesion of its seeds. In the grape is shewn patience, in that it is cast into the wine-press - joy, because wine maketh glad the heart of man - purity, because it is not mixed with water - and sweetness, in that it delighteth. The thorns and thistles are the heretics. And as a thorn or a thistle has sharp pricks on every part, so the Devil's servants, on whatsoever side you look at them, are full of wickedness. Thorns and thistles then of this sort cannot bear the fruits of the Church. And having instanced in particular tress, as the fig, the vine, the thorn, and the thistle, He proceeds to shew that this is universally true, saying, "Thus every good tree bringeth forth good fruit, but an evil tree bringeth forth evil fruit."

In this place we must guard against the error of such [margin note: Manichees] as imagine that the two trees refer to two different natures; the one of God, the other not. But we affirm that they derive no countenance from these two tree; as it will be evident to any who will read the context that He is speaking here of men.

These men of whom we have spoken are offended with these two natures, not considering them according to their true usefulness; whereas it is not by our advantage or disadvantage, but in itself considered, that nature gives glory to her Framer. All natures then that are, because they are, have their own manner, their own appearance, and as it were their own harmony [margin note: pacem], and are altogether good.

But that none should say, An evil tree brings forth indeed evil fruit, but it brings forth also good, and so it becomes hard to discern, as it has a two-fold produce; on this account He adds, "A good tree cannot bring forth evil fruit, neither can an evil tree bring forth good fruit."

From this speech the Manichees suppose that neither can a soul that is evil be possibly changed for better, nor one that is good into worse. As though it had been, A good tree cannot become bad, nor a bad tree become good; whereas it is thus said, "A good tree cannot bring forth evil fruit," nor the reverse. The tree is the soul, that is, the man himself; the fruit is the man's works. An evil man therefore cannot work good works, nor a good man evil works. Therefore if an evil man would work good things, let him first become good. But as long as he continues evil, he cannot bring forth good fruits. Like as it is indeed possible that what was once snow, should cease to be so; but it cannot be that snow should be warm; so it is possible that he who has been evil should be so no longer; but it is impossible that an evil man should do good. For though he may sometimes be useful, it is not he that does it, but it comes of Divine Providence super-intending.

And man is denominated a good tree, or a bad, after his will, as it is good or bad. His fruit is his works, which can neither be good when the will is evil, nor evil when it is good.

But as it is manifest that all evil works proceed from an evil will, as its fruits from an evil tree; so of this evil will itself whence will you say that it has sprung, except that the evil will of an angel sprung from an angel, of man from man? And what were these two before those evils arose in them, but the good work of God, a good and praiseworthy nature. See then out of good arises evil; nor was there any thing at all out of which it might arise but what was good. I mean the evil will itself, since there was no evil before it, no evil works, which could not come but from evil will as fruit from an evil tree. Nor can it be said that it sprung out of good in this way, because it was made good by a good God; for it was made of nothing, and not of God.

We would ask those heretics who affirm that there are two natures directly opposed to each other, if they admit that a good tree cannot bring forth evil fruit, how it was possible for Moses, a good tree, to sin as he did at the water of contradiction? Or for Peter to deny his Lord in the Passion, saying, "I know not the man?" Or how, on the other hand, could Moses" father-in-law, an evil tree, inasmuch as he believed not in the God of Israel, give good counsel?

He had not enjoined them to punish the false prophets, and therefore shews them the terrors of that punishment that is of God, saying, "Every tree that bringeth not forth good fruit shall be hewn down, and cast into the fire." In these words He seems to aim also at the Jews, and thus calls to mind the word of John the Baptist, denouncing punishment against them in the very same words. For he had thus spoken to the Jews, warning them of the axe impending, the tree that should be cut down, and the fire that could not be extinguished. But if one will examine somewhat closely, here are two punishments, to be cut down, and to be burned; and he that is burned is also altogether cut out of the kingdom; which is the harder punishment. Many indeed fear no more than hell; but I say that the fall of that glory is a far more bitter punishment, than the pains of hell itself. For what evil great or small would not a father undergo, that he might see and enjoy a most dear son? Let us then think the same of that glory; for there is no son so dear to his father as is the rest of the good, to be deceased and to be with Christ. The pain of hell is indeed intolerable, yet are ten thousand hells nothing to falling from that blessed glory, and being held in hate by Christ.

non occ.: From the foregoing similitude He draws the conclusion to what He had said before, as being now manifest, saying, "Therefore by their fruits ye shall know them."

Where was Marcion then , that shipmaster of Pontus, the zealous student of Stoicism? Where was Valentinus then , the disciple of Platonism? For it is evident that those men lived not so long ago, in the reign of Antoninus for the most part, and that they at first were believers in the doctrine of the Catholic Church, in the church of Rome under the episcopate of the blessed Eleutherus, until on account of their ever restless curiosity, with which they even infected the brethren, they were more than once expelled. Marcion, indeed, [went] with the two hundred sesterces which he had brought into the church, and, when banished at last to a permanent excommunication, they scattered abroad the poisons of their doctrines. …

15. The judges said : We need not inquire as to the manner in which that primitive commerce took place until we have first seen it proved that there are two natural principles. For when once it is made clear that there are two unbegotten natures, then others of your averments may also gain our assent, even although something in them may not seem to fit in very readily with what is credible. For as the power of pronouncing judgment has been committed to us, we shall declare what may make itself clear to our mind. We may, however, also grant to Archelaus the liberty of speaking to these statements of yours, so that, by comparing what is said by each of you, we may be able to give our decision in accordance with the truth. Archelaus said : Notwithstanding, the adversary’s intent is replete with gross audacity and blasphemy. Manes said : Hear, O judges, what he has said of the adversary . …

17. Manes said : Let it first be allowed on your side that there is an alien root of wickedness, which God has not planted, and then I shall tell you its fruits. Archelaus said: Truth’s reckoning does not make any such requirement; and I shall not admit to you that there is a root of any such evil tree, of the fruit whereof no one has ever tasted. But just as, when a man desires to make any purchase, he does not produce the money unless he first ascertains by tasting the object whether it is of a dry or a moist species, so I shall not admit to you that the tree is evil and utterly corrupt, unless the quality of its fruit is first exhibited; for it is written, that “the tree is known by its fruits.” Tell us, therefore, O Manes, what fruit is yielded by that tree which is called evil, or of what nature it is, and what virtue it is, that we may also believe with you that the root of that sa …

6. I reminded them also of a passage in the Gospel which I had expounded the day before, in which it is said of the false prophets: “Ye shall know them by their fruits.” I also bade them remember that in that place our works are signified by the word fruits. Then I asked among what kind of fruits drunkenness was named, and read that passage in the Epistle to the Galatians: “Now the works of the flesh are manifest, which are these: adultery, fornication, uncleanness, lasciviousness, idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies, envyings, murder, drunkenness, revellings, and such like; of the which I tell you before, as I have told you in time past, that they which do such things shall not inherit the kingdom of God.” After these words, I asked how, when God has commanded that Christians be known by their fruits, we could be known as Christians by …

4. As the falsity of his statement, however, was apparent, a hasty retreat from it was made in a cloud of confused words, in the midst of which he quoted the Lord’s words: “Beware of false prophets, which come to you in sheep’s clothing, but inwardly they are ravening wolves. Ye shall know them by their fruits.” When I said that these words of the Lord might also be applied by us to them, he went on to magnify the persecution which he affirmed that his party had often suffered; intending thereby to prove that his party were Christians because they endured persecution. …

But when we say that evil springs out of good, let it not be thought that this contradicts our Lord’s saying: “A good tree cannot bring forth evil fruit.” For, as He who is the Truth says, you cannot gather grapes of thorns, because grapes do not grow on thorns. But we see that on good soil both vines and thorns may be grown. And in the same way, just as an evil tree cannot bring forth good fruit, so an evil will cannot produce good works. But from the nature of man, which is good, may spring either a good or an evil will. And certainly there was at first no source from which an evil will could spring, except the nature of angel or of man, which was good. And our Lord Himself clearly shows this in the very same place where He speaks about the tree and its fruit. …

12. “But,” thou wilt say, “we more easily penetrate their concealment if we pretend to be ourselves what they are.” If this were lawful or expedient, Christ might have instructed his sheep that they should come clad in wolves’ clothing to the wolves, and by the cheat of this artifice discover them: which He hath not said, no, not when He foretold that He would send them forth in the midst of wolves. But thou wilt say: “They needed not at that time to have inquisition made for them, being most manifest wolves; but their bite and savageness were to be endured.” What, when foretelling later times, He said that ravening wolves would come in sheep’s clothing? Was there not room there to give this advice and say, And do ye, that ye may find them out, assume wolves’ clothing, but within be ye sheep still? Not this saith He: but when he had said, “Many will come to you in sheep’s clothing, but w …

Chapter 8. 9. When he hears, "Every good tree bringeth good fruit, but a corrupt tree bringeth forth evil fruit: do men gather grapes of thorns?" and, "A good man out of the good treasure of his heart bringeth forth good things, and an evil man out of the evil treasure bringeth forth evil things;" he will answer, This therefore is good fruit, that I should be a good tree, that is, a good man, that I should show forth good fruit, that is, good works. But this will be given to me, not by him that planteth, nor by him that watereth, but by God that giveth the increase. For if the good tree be the good baptizer, so that his good fruit should be the man whom he baptizes, then any one who has been baptized by a bad man, even if his wickedness be not manifest, will have no power to be good, for he is sprung from an evil tree. …

Chapter 21. 23. Lastly, it has been said, as he himself has also quoted, "Ye shall know them by their fruits:" let us therefore examine into their fruits. You bring up against our predecessors their delivery of the sacred books. This very charge we urge with greater probability against their accusers themselves. And not to carry our search too far, in the same city of Constantina your predecessors ordained Silvanus bishop at the very outset of his schism. He, while he was still a subdeacon, was most unmistakeably entered as a traditor in the archives of the city. If you on your side bring forward documents against our predecessors, all that we ask is equal terms, that we should either believe both to be true or both to be false. …

Chapter 6. 12. Petilianus said: "This being the case, brethren, what perversity must it be, that he who is guilty through his own sins should make another free from guilt, when the Lord Jesus Christ says, ‘Every good tree bringeth forth good fruit, but a corrupt tree bringeth forth evil fruit: do men gather grapes of thorns?’ And again: ‘A good man, out of the good treasure of the heart, bringeth forth good things: and an evil man, out of the evil treasure, bringeth forth evil things.’"

Chapter 16. 36 . Petilianus said: "The Lord Christ also warns us, saying, ‘Beware of false prophets, which come unto you in sheep’s clothing, but inwardly they are ravening wolves; and ye shall not know them by their fruits.’"

164. Augustin answered: I should be glad to utter the same sentiment against you, but not in the words which you have used: they are too inappropriate, or rather mad. But what was required was, that you should show that we were wolves and that you were sheep, not by the emptiest of evil-speaking, but by some distinct proofs. For when I too have said, We are sheep, and you are wolves, do you think that there is any difference caused by the fact that you express the idea in swelling words? But listen whilst I prove what I assert. …