Matthew 5:13

When He had delivered to His Apostles such sublime precepts, so much greater than the precepts of the Law, that they might not be dismayed and say, How shall we be able to fulfil these things? He sooths their fears by mingling praises with His instructions, saying, "Ye are the salt of the earth." This shews them how necessary were these precepts for them. Not for your own salvation merely, or for a single nation, but for the whole world is this doctrine committed to you. It is not for you then to flatter and deal smoothly with men, but, on the contrary, to be rough and biting as salt is. When for thus offending men by reproving them ye are reviled, rejoice; for this is the proper effect of salt to be harsh and grating to the depraved palate. Thus the evil-speaking of others will bring you no inconvenience, but will rather be a testimony of your firmness.

There may be here seen a propriety in our Lord's language which may be gathered by considering the Apostle's office, and the nature of salt. This, used as it is by men for almost every purpose, preserves from decay those bodies which are sprinkled with it; and in this, as well as in every sense of its flavour as a condiment, the parallel is most exact. The Apostles are preachers of heavenly things, and thus, as it were, salters with eternity; rightly called "the salt of the earth," as by the virtue of their teaching, they, as it were, salt and preserve bodies for eternity.

Moreover, salt is changed into another kind of substance by three means, water, the heat of the sun, and the breath of the wind. Thus Apostolic men also were changed into spiritual regeneration by the water of baptism, the heat of love, and the breath of the Holy Spirit. That heavenly wisdom also, which the Apostles preached, dries up the humours of carnal works, removes the foulness and putrefaction of evil conversation, kills the work of lustful thoughts, and also that worm of which it is said "their worm dieth not." [Isa 66:24]

The Apostles are "the salt of the earth," that is, of worldly men who are called the earth, because they love this earth.

Or, because by the Apostles the whole human race is seasoned.

A doctor when he is adorned with all the preceding virtues, then is like good salt, and his whole people are salted by seeing and hearing him.

It should be known, that in the Old Testament no sacrifice was offered to God unless it were first sprinkled with salt, for none can present an acceptable sacrifice to God without the flavour of heavenly wisdom.

And because man is ever liable to change, He therefore warns the Apostles, who have been entitled "the salt of the earth," to continue steadfast in the might of the power committed to them, when He adds, "If the salt have lost its savour, wherewith shall it be salted?"

That is, if the doctor have erred, by what other doctor shall he be corrected?

If you by whom the nations are to be salted shall lose the kingdom of heaven through fear of temporal persecution, who are they by whom your error shall be corrected? Another copy has, "If the salt have lost all sense," shewing that they must be esteemed to have lost their sense, who either pursuing abundance, or fearing lack of temporal goods, lose those which are eternal, and which men can neither give nor take away.

But if the doctors having become senseless, and having lost all the savour they once enjoyed, are unable to restore soundness to things corrupt, they are become useless; and "are thenceforth fit only to be cast out and trodden by men."

The illustration is taken from husbandry. Salt, though it be necessary for seasoning of meats and preserving flesh, has no further use. Indeed we read in Scripture of vanquished cities sown with salt by the victors, that nothing should thenceforth grow there.

ap. Anselm: When then they who are the heads have fallen away, they are fit for no use but to be cast out from the office of teacher.

Or even cast out from the Church's store rooms to be trodden under foot by those that walk.

Not he that suffers persecution is trodden under foot of men, but he who through fear of persecution falls away. For we can tread only on what is below us; but he is no way below us, who however much he may suffer in the body, yet has his heart fixed in heaven.

1. There being thus three kinds of substances, they declare of all that is material (which they also describe as being “on the left hand”) that it must of necessity perish, inasmuch as it is incapable of receiving any afflatus of incorruption. As to every animal existence (which they also denominate “on the right hand”), they hold that, inasmuch as it is a mean between the spiritual and the material, it passes to the side to which inclination draws it. Spiritual substance, again, they describe as having been sent forth for this end, that, being here united with that which is animal, it might assume shape, the two elements being simultaneously subjected to the same discipline. …

3. And while these things were taking place, his wife remained in [the territory of] Sodomm, no longer corruptible flesh, but a pillar of salt which endures for ever; and by those natural processes which appertain to the human race, indicating that the Church also, which is the salt of the earth, has been left behind within the confines of the earth, and subject to human sufferings; and while entire members are often taken away from it, the pillar of salt still endures, thus typifying the foundation of the faith which maketh strong, and sends forward, children to their Father.

But there is another unholy kiss, full of poison, counterfeiting sanctity. Do you not know that spiders, merely by touching the mouth, afflict men with pain? And often kisses inject the poison of licentiousness. It is then very manifest to us, that a kiss is not love. For the love meant is the love of God. “And this is the love of God,” says John, “that we keep His commandments;” not that we stroke each other on the mouth. “And His commandments are not grievous.” But salutations of beloved ones in the ways, full as they are of foolish boldness, are characteristic of those who wish to be conspicuous to those without, and have not the least particle of grace. …

says the tragedy. Such are these wranglers, whether they follow the sects, or practice miserable dialectic arts. These are they that “stretch the warp and weave nothing,” says the Scripture; prosecuting a bootless task, which the apostle has called “cunning craftiness of men whereby they lie in wait to deceive.” “For there are,” he says, “many unruly and vain talkers and deceivers.” Wherefore it was not said to all, “Ye are the salt of the earth.” For there are some even of the hearers of the word who are like the fishes of the sea, which, reared from their birth in brine, yet need salt to dress them for food. Accordingly I wholly approve of the tragedy, when it says:

XXXVI. All the faithful, then, are good and godlike, and worthy of the name by which they are encircled as with a diadem. There are, besides, some, the elect of the elect, and so much more or less distinguished by drawing themselves, like ships to the strand, out of the surge of the world and bringing themselves to safety; not wishing to seem holy, and ashamed if one call them so; hiding in the depth of their mind the ineffable mysteries, and disdaining to let their nobleness be seen in the world; whom the Word calls “the light of the world, and the salt of the earth.” This is the seed, the image and likeness of God, and His true son and heir, sent here as it were on a sojourn, by the high administration and suitable arrangement of the Father, by whom the visible and invisible things of the world were created; some for their service, some for their discipline, some for their instruction; …

But if all the Romans, according to the supposition of Celsus, embrace the Christian faith, they will, when they pray, overcome their enemies; or rather, they will not war at all, being guarded by that divine power which promised to save five entire cities for the sake of fifty just persons. For men of God are assuredly the salt of the earth: they preserve the order of the world; and society is held together as long as the salt is uncorrupted: for “if the salt have lost its savour, it is neither fit for the land nor for the dunghill; but it shall be cast out, and trodden under foot of men. He that hath ears, let him hear” the meaning of these words. …

1. Since the Lord warns us, saying, “Ye are the salt of the earth,” and since He bids us to be simple to harmlessness, and yet with our simplicity to be prudent, what else, beloved brethren, befits us, than to use foresight and watching with an anxious heart, both to perceive and to beware of the wiles of the crafty foe, that we, who have put on Christ the wisdom of God the Father, may not seem to be wanting in wisdom in the matter of providing for our salvation? For it is not persecution alone that is to be feared; nor those things which advance by open attack to overwhelm and cast down the servants of God. Caution is more easy where danger is manifest, and the mind is prepared beforehand for the contest when the adversary avows himself. …

In the Gospel according to Matthew: “Be ye prudent as serpents, and simple as doves.” And again: “Ye are the salt of the earth. But if the salt have lost his savour, in what shall it be salted? It is good for nothing, but to be cast out abroad, and to be trodden under foot of men.”

Lucius of Castra Galbæ said: Since the Lord in His Gospel said, “Ye are the salt of the earth: but if the salt should have lost its savour, wherewith shall it be salted? It is thenceforth good for nothing, but to be cast out of doors, and to be trodden under foot of men.” And again, after His resurrection, sending His apostles, He gave them charge, saying, “All power is given unto me, in heaven and in earth. Go and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.” Since, therefore, it is manifest that heretics, that is, the enemies of Christ, have not the sound confession of the sacrament; moreover, that schismatics cannot season others with spiritual wisdom, since they themselves, by departing from the Church, which is one, having lost the savour, have become contrary to it, let it be done as it is written, “The house of those that are …

For as the putrid humours and matter of flesh, and all those things which corrupt it, are driven out by salt, in the same manner all the irrational appetites of a virgin are banished from the body by divine teaching. For it must needs be that the soul which is not sprinkled with the words of Christ, as with salt, should stink and breed worms, as King David, openly confessing with tears in the mountains, cried out, “My wounds stink and are corrupt,” because he had not salted himself with the exercises of self-control, and so subdued his carnal appetites, but self-indulgently had yielded to them, and became corrupted in adultery. And hence, in Leviticus, every gift, unless it be seasoned with salt, is forbidden to be offered as an oblation to the Lord God. …

Let no one suppose that all the remaining company of those who have believed are condemned, thinking that we who are virgins alone shall be led on to attain the promises, not understanding that there shall be tribes and families and orders, according to the analogy of the faith of each. And this Paul, too, sets forth, saying, “There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory. So also is the resurrection of the dead.” And the Lord does not profess to give the same honours to all; but to some He promises that they shall be numbered in the kingdom of heaven, to others the inheritance of the earth, and to others to see the Father. …

2. What is “to the end” ye know. For “the end of the law is Christ.” Those that are changed ye know. For who but they that do pass from old life into new?…“For ye were sometime darkness, but now light in the Lord.” But they are changed “into the title’s inscription,”…who into the kingdom of Christ do pass over from the kingdom of the devil. It is well that they are changed unto this title’s inscription. But they are changed, as followeth, “unto teaching.” He added, “for David himself unto teaching:” that is, are changed not for themselves, but for David himself, and are changed unto teaching.…When therefore would Christ have changed us, unless He had done that which He spake of, “Fire I have come to send into the world”? If therefore Christ came to send into the world fire, to wit to its health and profit, we must inquire not how He is to send the world into fire, but how into the world …