We have here an exposition of the seventh commandment, given us by the same hand that made the law, and therefore was fittest to be the interpreter of it: it is the law against uncleanness, which fitly follows upon the former; that laid a restraint upon sinful passions, this upon sinful appetites, both which ought always to be under the government of reason and conscience, and if indulged, are equally pernicious.

I.The command is here laid down (Mat 5:27), Thou shalt not commit adultery; which includes a prohibition of all other acts of uncleanness, and the desire of them: but the Pharisees, in their expositions of this command, made it to extend no further than the act of adultery, suggesting, that if the iniquity was only regarded in the heart, and went no further, God could not hear it, would not regard it (Psa 66:18), and therefore they thought it enough to be able to say that they were no adulterers, Luk 18:11.

II.It is here explained in the strictness of it, in three things, which would seem new and strange to those who had been always governed by the tradition of the elders, and took all for oracular that they taught.

1.We are here taught, that there is such a thing as heart-adultery, adulterous thoughts and dispositions, which never proceed to the act of adultery or fornication; and perhaps the defilement which these give to the soul, that is here so clearly asserted, was not only included in the seventh commandment, but was signified and intended in many of those ceremonial pollutions under the law, for which they were to wash their clothes, and bathe their flesh in water. Whosoever looketh on a woman (not only another man's wife, as some would have it, but any woman), to lust after her, has committed adultery with her in his heart, Mat 5:28. This command forbids not only the acts of fornication and adultery, but, (1.) All appetites to them, all lusting after the forbidden object; this is the beginning of the sin, lust conceiving (Jam 1:15); it is a bad step towards the sin; and where the lust is dwelt upon and approved, and the wanton desire is rolled under the tongue as a sweet morsel, it is the commission of sin, as far as the heart can do it; there wants nothing but convenient opportunity for the sin itself. Adultera mens est - The mind is debauched. Ovid. Lust is conscience baffled or biassed: biassed, if it say nothing against the sin; baffled, if it prevail not in what is says. (2.) All approaches toward them; feeding the eye with the sight of the forbidden fruit; not only looking for that end, that I may lust; but looking till I do lust, or looking to gratify the lust, where further satisfaction cannot be obtained. The eye is both the inlet and outlet of a great deal of wickedness of this kind, witness Joseph's mistress (Gen 39:7), Samson (Jdg 16:1), David, Sa2 11:2. We read the eyes full of adultery, that cannot cease from sin, Pe2 2:14. What need have we, therefore, with holy Job, to make a covenant with our eyes, to make this bargain with them that they should have the pleasure of beholding the light of the sun and the works of God, provided they would never fasten or dwell upon any thing that might occasion impure imaginations or desires; and under this penalty, that if they did, they must smart for it in penitential tears! Job 31:1. What have we the covering of the eyes for, but to restrain corrupt glances, and to keep out of their defiling impressions? This forbids also the using of any other of our senses to stir up lust. If ensnaring looks are forbidden fruit, much more unclean discourses, and wanton dalliances, the fuel and bellows of this hellish fire. These precepts are hedges about the law of heart-purity, Mat 5:8. And if looking be lust, they who dress and deck, and expose themselves, with design to be looked at and lusted after (like Jezebel, that painted her face and tired her head, and looked out at the window) are no less guilty. Men sin, but devils tempt to sin.

2.That such looks and such dalliances are so very dangerous and destructive to the soul, that it is better to lose the eye and the hand that thus offend then to give way to the sin, and perish eternally in it. This lesson is here taught us, Mat 5:29, Mat 5:30. Corrupt nature would soon object against the prohibition of heart-adultery, that it is impossible to governed by it; "It is a hard saying, who can bear it? Flesh and blood cannot but look with pleasure upon a beautiful woman; and it is impossible to forbear lusting after and dallying with such an object." Such pretences as these will scarcely be overcome by reason, and therefore must be argued against with the terrors of the Lord, and so they are here argued against.

(1)It is a severe operation that is here prescribed for the preventing of these fleshly lusts. If thy right eye offend thee, or cause thee to offend, by wanton glances, or wanton gazings, upon forbidden objects; if thy right hand offend thee, or cause thee to offend, by wanton dalliances; and if it were indeed impossible, as is pretended, to govern the eye and the hand, and they have been so accustomed to these wicked practices, that they will not be withheld from them; if there be no other way to restrain them (which, blessed be God, through his grace, there is), it were better for us to pluck out the eye, and cut off the hand, though the right eye, and right hand, the more honourable and useful, than to indulge them in sin to the ruin of the soul. And if this must be submitted to, at the thought of which nature startles, much more must we resolve to keep under the body, and to bring it into subjection; to live a life of mortification and self-denial; to keep a constant watch over our own hearts, and to suppress the first rising of lust and corruption there; to avoid the occasions of sin, to resist the beginnings of it, and to decline the company of those who will be a snare to us, though ever so pleasing; to keep out of harm's way, and abridge ourselves in the use of lawful things, when we find them temptations to us; and to seek unto God for his grace, and depend upon that grace daily, and so to walk in the Spirit, as that we may not fulfil the lusts of the flesh; and this will be as effectual as cutting off a right hand or pulling out a right eye; and perhaps as much against the grain to flesh and blood; it is the destruction of the old man.

(2)It is a startling argument that is made use of to enforce this prescription (Mat 5:29), and it is repeated in the same words (Mat 5:30), because we are loth to hear such rough things; Isa 30:10. It is profitable for thee that one of thy members should perish, though it be an eye or a hand, which can be worse spared, and not that thy whole body should be cast into hell. Note, [1.] It is not unbecoming a minister of the gospel to preach of hell and damnation; nay, he must do it, for Christ himself did it; and we are unfaithful to our trust, if we give not warning of the wrath to come. [2.] There are some sins from which we need to be saved with fear, particularly fleshly lusts, which are such natural brute beasts as cannot be checked, but by being frightened; cannot be kept from a forbidden tree, but by cherubim, with a flaming sword. [3.] When we are tempted to think it hard to deny ourselves, and to crucify fleshly lusts, we ought to consider how much harder it will be to lie for ever in the lake that burns with fire and brimstone; those do not know or do not believe what hell is, that will rather venture their eternal ruin in those flames, than deny themselves the gratification of a base and brutish lust. [4.] In hell there will be torments for the body; the whole body will be cast into hell, and there will be torment in every part of it; so that if we have a care of our own bodies, we shall possess them in sanctification and honour, and not in the lusts of uncleanness. [5.] Even those duties that are most unpleasant to flesh and blood, are profitable for us; and our Master requires nothing from us but what he knows to be for our advantage.

3.That men's divorcing of their wives upon dislike, or for any other cause except adultery, however tolerated and practised among the Jews, was a violation of the seventh commandment, as it opened a door to adultery, Mat 5:31, Mat 5:32. Here observe,

(1)How the matter now stood with reference to divorce. It hath been said (he does not say as before, It hath been said by them of old time, because this was not a precept, as those were, though the Pharisees were willing so to understand it, Mat 19:7, but only a permission), "Whosoever shall put away his wife, let him give her a bill of divorce; let him not think to do it by word of mouth, when he is in a passion; but let him do it deliberately, by a legal instrument in writing, attested by witnesses; if he will dissolve the matrimonial bond, let him do it solemnly." Thus the law had prevented rash and hasty divorces; and perhaps at first, when writing was not so common among the Jews, that made divorces rare things; but in process of time it became very common, and this direction of how to do it, when there was just cause for it, was construed into a permission of it for any cause, Mat 19:3.

(2)How this matter was rectified and amended by our Saviour. He reduced the ordinance of marriage to its primitive institution: They two shall be one flesh, not to be easily separated, and therefore divorce is not to be allowed, except in case of adultery, which breaks the marriage covenant; but he that puts away his wife upon any other pretence, causeth her to commit adultery, and him also that shall marry her when she is thus divorced. Note, Those who lead others into temptation to sin, or leave them in it, or expose them to it, make themselves guilty of their sin, and will be accountable for it. This is one way of being partaker with adulterers Psa 50:18.

It hath been said,.... It is not added here, as in the former instances, "by them of old time"; nor prefaced with these words, "ye have heard"; because the case of divorce was not any law of Moses, or of God by him; but only a permission, because of the hardness of the hearts of the Jews: and as to the controversy, about the causes of divorce, this was not debated by them of old time, but was a new thing, just started in the time of Christ; and was a controversy then agitating, between the schools of Hillell and Shammai: the one allowing it upon any frivolous cause; the other, only on account of adultery.

Whosoever shall put away his wife, dissolve the marriage bond, dismiss her from his bed, and send her from his house, see Deu 24:1 "let him give her a writing of divorcement", , "a bill of divorcement", or "a book of cutting off". For though a wife was obtained by several ways, there was but one way of dismissing her, as the Jews observe (f), and that was, by giving her a bill. The form of a writing of divorcement, as given by Maimonides (g), is as follows:

"On such a day of the week, in such a month, of such a year, either from the creation, or the epocha of contracts, according to the usual way of computation, which we observe in such a place; I such an one, the son of such an one, of such a place; or if I have any other name, or surname, or my parents, or my place, or the place of my parents; by my own will, without any force, I put away, dismiss, and divorce thee. Thee, I say, who art such an one, the daughter of such an one, of such a place; or if thou hast any other name, or surname, or thy parents, or thy place, or the place of thy parents; who wast my wife heretofore, but now I put thee away, dismiss and divorce thee; so that thou art in thine own hand, and hast power over thyself, to go, and marry any other man, whom thou pleasest; and let no man hinder thee in my name, from this day forward and for ever; and lo! thou art free to any man: and let this be unto thee, from me, a bill of divorce, an instrument of dismission, and a letter of forsaking, according to the law of Moses and Israel.''

"Such an one, the son of such an one, witness. Such an one, the son of such an one, witness.''

Would you choose to have one of these bills, filled up in proper form, take it in manner (h) following.

"On the fourth day of the week, on the eleventh day of the month Cisleu, in the year five thousand four hundred and fifty four, from the creation of the world; according to the computation which we follow here, in the city of Amsterdam, which is called Amstelredam; situated by the sea side, called Taya, and by the river Amstel; I Abraham, the son of Benjamin, surnamed Wolphius, the priest; and at this time dwelling in the city of Amsterdam, which is called Amstelredam, which is situated by the sea side, called Taya, and by the river Amstel; or if I have any other name, or surname, or my parents, or my place, or the place of my parents; by my own free will, without any compulsion, I put away, dismiss, and divorce thee, my wife Rebecca, the daughter of Jonas the Levite; who at this time abides in the city of Amsterdam, called Amstelredam, situated by the sea side, called Taya, and by the river Amstel; or if thou hast any other name, or surname, or thy parents, or thy place, or the place of thy parents, who wast heretofore my wife; but now I put thee away, dismiss, and divorce thee; so that thou art in thine own hands, and hast power over thyself, to go and marry any other man, whom thou pleasest: and let no man hinder thee in my name, from this day forward, and for ever; and lo! thou art free to any man. Let this be to thee, from me, a bill of divorce, an instrument of dismission, and a letter of forsaking, according to the law of Moses and Israel.''

"Sealtiel, the son of Paltiel, witness. Calonymus, the son of Gabriel, witness.''

This bill being written in twelve lines, neither more nor less, and being sealed by the husband, and signed by the witnesses, was delivered, either by him, or by a messenger, or deputy of his or hers, into her hand, lap, or bosom, in the presence of two persons; after which, she might, if she would, enrol it in the public records, and marry whom she pleased.

(f) Baal Hatturim in Deut. xxiv. 1. Maimon. Hilchot Ishot, c. 1. sect. 2, 3. (g) Hilchot Gerushin, c. 4. sect. 12. (h) In Surenhusii Misna, Vol. III. p. 324. Vid. Moses Kotsensis Mitzvot Tora pr. affirm. 50.

It hath been said--This shortened form was perhaps intentional, to mark a transition from the commandments of the Decalogue to a civil enactment on the subject of divorce, quoted from Deu 24:1. The law of divorce--according to its strictness or laxity--has so intimate a bearing upon purity in the married life, that nothing could be more natural than to pass from the seventh commandment to the loose views on that subject then current.

Whosoever shall put away his wife, let him give her a writing of divorcement--a legal check upon reckless and tyrannical separation. The one legitimate ground of divorce allowed by the enactment just quoted was "some uncleanness"--in other words, conjugal infidelity. But while one school of interpreters (that of Shammai) explained this quite correctly, as prohibiting divorce in every case save that of adultery, another school (that of HILLEL) stretched the expression so far as to include everything in the wife offensive or disagreeable to the husband--a view of the law too well fitted to minister to caprice and depraved inclination not to find extensive favor. And, indeed, to this day the Jews allow divorces on the most frivolous pretexts. It was to meet this that our Lord uttered what follows: