Deuteronomy 21: Summary and Commentary

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Deuteronomy 21 has not been written up in our own words yet. Below are the notes on it from three commentaries — start with Tyndale, which is written in modern English for readers new to the Bible.

What the commentaries say about Deuteronomy 21

Three commentaries, oldest last. Each is shown in full with its author and licence, and every scripture reference inside them links through to the verse.

Tyndale Open Study Notes on Deuteronomy 21

Short, plain-English notes written for people reading the Bible for the first time. They explain what a word meant to its original audience, why a detail is there, and where else in Scripture the same idea shows up. If you only read one set of notes on this page, read this one.

11 notes on Deuteronomy 21

Verse 1

21:1-9 The guilt of murder was usually removed through the death of the murderer (19:11-13; Num 35:30-34). However, if the murderer was unknown, the guilt could still be removed by using this ritual.

21:1 In contrast to the word translated murder in the Ten Commandments (see study note on 5:17), the Hebrew verb here translated murdered (literally pierced through) indicates clear evidence that the death was not by natural causes.

Verse 3

21:3-8 An avenger from the victim’s family (19:6-7; Num 35:16-29) could not hold the whole community responsible.

Verse 4

21:4 The stream would be an ever-flowing (perennial) brook located in an isolated area, free of contaminants.

Verse 6

21:6 wash their hands: This ancient practice asserted innocence (cp. Matt 27:24); by it the community would declare that it was not responsible for a crime committed in its vicinity.

Verse 12

21:12 To shave her head and cut her nails demonstrated a captive woman’s separation from her home and family. She was cutting off the past to join a new family and community.

Verse 13

21:13 To change the clothes she was wearing symbolically communicated taking on a new life and identifying with a new family.

Verse 14

21:14 humiliated her: By first taking her prisoner and then divorcing her, a captive woman’s husband devalued her. To protect her from further disgrace, the law prohibited him from selling her as a slave or from using her as one. Instead, she must be allowed to go free.

Verse 15

21:15-17 The law required that a firstborn son receive the greater share of his father’s inheritance (see 21:15-16; 2 Kgs 2:9). The custom of giving the firstborn son a double portion is first recorded here but was implied in earlier practice (see Gen 25:31-34; 27:1-4; 48:8-22). • son of his father’s virility: The eldest male child carried this distinction because he proved that the man was capable of siring children, and a boy in particular.

Verse 20

21:20 Calling someone a glutton and a drunkard was probably a proverbial cliché suggesting self-indulgence and laziness. Such a son was a good-for-nothing who rebelled against his parents and thus also against the community and divine authority (see Prov 23:20-21).

Verse 22

21:22 hung on a tree: This was not the method of execution, at least in this text. It was a shameful display of those already put to death for capital offenses, probably to show the Lord’s hatred of sin and to deter others who might commit such acts (see also Gen 40:19, 22; Josh 10:26; 2 Sam 4:12; 21:12; Esth 2:23; 7:10).

Verse 23

21:23 for anyone who is hung: The Greek version reads for everyone who is hung on a tree. Cp. Gal 3:13, which explains how this proverb applies to Jesus. • cursed in the sight of God: Unrepentant sinners do fall under God’s judgment. However, the idea of this proverb is probably that whoever saw a person in this condition would naturally conclude that God had cursed that person, when in fact the person could have been misjudged or even lynched.

Tyndale Open Study Notes © Tyndale House Publishers, licensed under CC BY-SA 4.0. Reformatted for the web by BibleHearth; wording unchanged. CC BY-SA 4.0 · Read the original

Matthew Henry's Commentary on the Whole Bible on Deuteronomy 21

A pastor writing for his own congregation three hundred years ago. Henry is less interested in historical background than in what a chapter asks of the person reading it, which is why he is still quoted in sermons today. He is warm, direct, and unafraid to apply a text to you.

Before you start: Written in the early 1700s. The sentences are long and some words have shifted meaning since — "conversation" means how a person lives, "want" means to lack something. Read it slowly; it rewards that.

Chapter overview and 4 notes on Deuteronomy 21

What this chapter is doing

In this chapter provision is made, I. For the putting away of the guilt of blood from the land, when he that shed it had fled from justice (Deu 21:1-9). II. For the preserving of the honour of a captive maid (Deu 21:10-14). III. For the securing of the right of a first-born son, though he were not a favourite (Deu 21:15-17). IV. For the restraining and punishing of a rebellious son (Deu 21:18-21). V. For the maintaining of the honour of human bodies, which must not be hanged in chains, but decently buried, even the bodies of the worst malefactors (Deu 21:22, Deu 21:23).

Verse 1

Care had been taken by some preceding laws for the vigorous and effectual persecution of a wilful murderer (Deu 19:11 etc.), the putting of whom to death was the putting away of the guilt of blood from the land; but if this could not be done, the murderer not being discovered, they must not think that the land was in no danger of contracting any pollution because it was not through any neglect of theirs that the murderer was unpunished; no, a great solemnity is here provided for the putting away of the guilt, as an expression of their dread and detestation of that sin.

I. The case supposed is that one is found slain, and it is not known who slew him, Deu 21:1. The providence of God has sometimes wonderfully brought to light these hidden works of darkness, and by strange occurrences the sin of the guilty has found them out, insomuch that it has become a proverb, Murder will out. But it is not always so; now and then the devil's promises of secresy and impunity in this world are made good; yet it is but for a while: there is a time coming when secret murders will be discovered; the earth shall disclose her blood (Isa 26:21), upon the inquisition which justice makes for it; and there is an eternity coming when those that escaped punishment from men will lie under the righteous judgment of God. And the impunity with which so many murders and other wickednesses are committed in this world makes it necessary that there should be a day of judgment, to require that which is past, Ecc 3:15.

II. Directions are given concerning what is to be done in this case. Observe,

1. It is taken for granted that a diligent search had been made for the murderer, witnesses examined, and circumstances strictly enquired into, that if possible they might find out the guilty person; but if, after all, they could not trace it out, not fasten the charge upon any, then, (1.) The elders of the next city (that had a court of three and twenty in it) were to concern themselves about this matter. If it were doubtful which city was next, the great sanhedrim were to send commissioners to determine that matter by an exact measure, Deu 21:2, Deu 21:3. Note, Public persons must be solicitous about the public good; and those that are in power and reputation in cities must lay out themselves to redress grievances, and reform what is amiss in the country and neighbourhood that lie about them. Those that are next to them should have the largest share of their good influence, as ministers of God for good. (2.) The priests and Levites must assist and preside in this solemnity (Deu 21:5), that they might direct the management of it in all points according to the law, and particularly might be the people's mouth to God in the prayer that was to be put up on this sad occasion, Deu 21:8. God being Israel's King, his ministers must be their magistrates, and by their word, as the mouth of the court and learned in the laws, every controversy must be tried. It was Israel's privilege that they had such guides, overseers, and rulers, and their duty to make use of them upon all occasions, especially in sacred things, as this was. (3.) They were to bring a heifer down into a rough and unoccupied valley, and to kill it there, Deu 21:3, Deu 21:4. This was not a sacrifice (for it was not brought to the altar), but a solemn protestation that thus they would put the murderer to death if they had him in their hands. The heifer must be one that had not drawn in the yoke, to signify (say some) that the murderer was a son of Belial; it must be brought into a rough valley, to signify the horror of the fact, and that the defilement which blood brings upon a land turns it into barrenness. And the Jews say that unless, after this, the murderer was found out, this valley where the heifer was killed was never to be tilled nor sown. (4.) The elders were to wash their hands in water over the heifer that was killed, and to profess, not only that they had not shed this innocent blood themselves, but that they knew not who had (Deu 21:6, Deu 21:7), nor had knowingly concealed the murderer, helped him to make his escape, or been any way aiding or abetting. To this custom David alludes, Psa 26:6, I will wash my hands in innocency; but if Pilate had any eye to it (Mat 27:24) he wretchedly misapplied it when he condemned Christ, knowing him to be innocent, and yet acquitted himself from the guilt of innocent blood. Protestatio non valet contra factum - Protestations are of no avail when contradicted by fact. (5.) The priests were to pray to God for the country and nation, that God would be merciful to them, and not bring upon them the judgments which the connivance at the sin of murder would deserve. It might be presumed that the murderer was either one of their city or was now harboured in their city; and therefore they must pray that they might not fare the worse for his being among them, Num 16:22. Be merciful, O Lord, to thy people Israel, Deu 21:8. Note, When we hear of the wickedness of the wicked we have need to cry earnestly to God for mercy for our land, which groans and trembles under it. We must empty the measure by our prayers which others are filling by their sins. Now,

2. This solemnity was appointed, (1.) That it might give occasion to common and public discourse concerning the murder, which perhaps might some way or other occasion the discovery of it. (2.) That it might possess people with a dread of the guilt of blood, which defiles not only the conscience of him that sheds it (this should engage us all to pray with David, Deliver me from blood-guiltiness), but the land in which it is shed; it cries to the magistrate for justice on the criminal, and, if that cry be not heard, it cries to heaven for judgment on the land. If there must be so much care employed to save the land from guilt when the murderer was not known, it was certainly impossible to secure it from guilt if the murderer was known and yet protected. All would be taught, by this solemnity, to use their utmost care and diligence to prevent, discover, and punish murder. Even the heathen mariners dreaded the guilt of blood, Jon 1:14. (3.) That we might all learn to take heed of partaking in other men's sins, and making ourselves accessory to them ex post facto - after the fact, by countenancing the sin or sinner, and not witnessing against it in our places. We have fellowship with the unfruitful works of darkness if we do not reprove them rather, and bear our testimony against them. The repentance of the church of Corinth for the sin of one of their members produced such a carefulness, such a clearing of themselves, such a holy indignation, fear, and revenge (Co2 7:11), as were signified by the solemnity here appointed.

Verse 10

By this law a soldier is allowed to marry his captive if he pleased. For the hardness of their hearts Moses gave them this permission, lest, if they had not had liberty given them to marry such, they should have taken liberty to defile themselves with them, and by such wickedness the camp would have been troubled. The man is supposed to have a wife already, and to take this wife for a secondary wife, as the Jews called them. This indulgence of men's inordinate desires, in which their hearts walked after their eyes, is by no means agreeable to the law of Christ, which therefore in this respect, among others, far exceeds in glory the law of Moses. The gospel permits not him that has one wife to take another, for from the beginning it was not so. The gospel forbids looking upon a woman, though a beautiful one, to lust after her, and commands the mortifying and denying of all irregular desires, though it be as uneasy as the cutting off of a right hand; so much does our holy religion, more than that of the Jews, advance the honour and support the dominion of the soul over the body, the spirit over the flesh, consonant to the glorious discovery it makes of life and immortality, and the better hope.

But, though military men were allowed this liberty, yet care is here taken that they should not abuse it, that is,

I. That they should not abuse themselves by doing it too hastily, though the captive was ever so desirable: "If thou wouldest have her to thy wife (Deu 21:10, Deu 21:11), it is true thou needest not ask her parents' consent, for she is thy captive, and is at thy disposal. But, 1. Thou shalt have no familiar intercourse till thou hast married her." This allowance was designed to gratify, not a filthy brutish lust, in the heat and fury of its rebellion against reason and virtue, but an honourable and generous affection to a comely and amiable person, though in distress; therefore he may make her his wife if he will, but he must not deal with her as with a harlot. 2. "Thou shalt not marry her of a sudden, but keep her a full month in thy house," Deu 21:12, Deu 21:13. This he must do either, (1.) That he may try to take his affection off from her; for he must know that, though in marrying her he does not do ill (so the law then stood), yet in letting her alone he does much better. Let her therefore shave her head, that he might not be enamoured with her locks, and let her nails grow (so the margin reads it), to spoil the beauty of her hand. Quisquid amas cupias non placuisse nimis - We should moderate our affection for those things which we are tempted to love inordinately. Or rather, (2.) This was done in token of her renouncing idolatry, and becoming a proselyte to the Jewish religion. The shaving of her head, the paring of her nails, and the changing of her apparel, signified her putting off her former conversation, which was corrupt in her ignorance, that she might become a new creature. She must remain in his house to be taught the good knowledge of the Lord and the worship of him: and the Jews say that if she refused, and continued obstinate in idolatry, he must not marry her. Note, The professors of religion must not be unequally yoked with unbelievers, Co2 6:14.

II. That they should not abuse the poor captive. 1. She must have time to bewail her father and mother, from whom she was separated, and without whose consent and blessing she is now likely to be married, and perhaps to a common soldier of Israel, though in her country ever so nobly born and bred. To force a marriage till these sorrows were digested, and in some measure got over, and she was better reconciled to the land of her captivity by being better acquainted with it, would be very unkind. She must not bewail her idols, but be glad to part with them; to her near and dear relations only her affection must be thus indulged. 2. If, upon second thoughts, he that had brought her to his house with a purpose to marry her changed his mind and would not marry her, he might not make merchandise of her, as of his other prisoners, but must give her liberty to return, if she pleased, to her own country, because he had humbled her and afflicted her, by raising expectations and then disappointing them (Deu 21:14); having made a fool of her, he might not make a prey of her. This intimates how binding the laws of justice and honour are, particularly in the pretensions of love, the courting of affections, and the promises of marriage, which are to be looked upon as solemn things, that have something sacred in them, and therefore are not to be jested with.

Verse 15

This law restrains men from disinheriting their eldest sons out of mere caprice, and without just provocation.

I. The case here put (Deu 21:15) is very instructive. 1. It shows the great mischief of having more wives than one, which the law of Moses did not restrain, probably in hopes that men's own experience of the great inconvenience of it in families would at last put an end to it and make them a law to themselves. Observe the supposition here: If a man have two wives, it is a thousand to one but one of them is beloved and the other hated (that is, manifestly loved less) as Leah was by Jacob, and the effect of this cannot but be strifes and jealousies, envy, confusion, and every evil work, which could not but create a constant uneasiness and vexation to the husband, and involve him both in sin and trouble. Those do much better consult their own ease and satisfaction who adhere to God's law than those who indulge their own lusts. 2. It shows how Providence commonly sides with the weakest, and gives more abundant honour to that part which lacked; for the first-born son is here supposed to be hers that was hated; it was so in Jacob's family: because the Lord saw that Leah was hated, Gen 29:31. The great householder wisely gives to each his dividend of comfort; if one had the honour to be the beloved wife, it often proved that the other had the honour to be the mother of the first-born.

II. The law in this case is still binding on parents; they must give their children their right without partiality. In the case supposed, the eldest son, though the son of the less-beloved wife, must have his birthright privilege, which was a double portion of the father's estate, because he was the beginning of his strength that is, in him his family began to be strengthened and his quiver began to be filled with the arrows of a mighty man (Psa 127:4), and therefore the right of the first-born is his, Deu 21:16, Deu 21:17. Jacob had indeed deprived Reuben of his birthright, and given it to Joseph, but it was because Reuben had forfeited the birthright by his incest, not because he was the son of the hated; now, lest that which Jacob did justly should be drawn into a precedent for others to do the same thing unjustly, it is here provided that when the father makes his will, or otherwise settled his estate, the child shall not fare the worse for the mother's unhappiness in having less of her husband's love, for that was not the child's fault. Note, (1.) Parents ought to make no other difference in dispensing their affections among their children than what they see plainly God makes in dispensing his grace among them. (2.) Since it is the providence of God that makes heirs, the disposal of providence in that matter must be acquiesced in and not opposed. No son should be abandoned by his father till he manifestly appear to be abandoned of God, which is hard to say of any while there is life.

Verse 18

Here is, I. A law for the punishing of a rebellious son. Having in the former law provided that parents should not deprive their children of their right, it was fit that it should next be provided that children withdraw not the honour and duty which are owing to their parents, for there is no partiality in the divine law. Observe,

1. How the criminal is here described. He is a stubborn and rebellious son, Deu 21:18. No child was to fare the worse for the weakness of his capacity, the slowness or dulness of his understanding, but for his wilfulness and obstinacy. If he carry himself proudly and insolently towards his parents, contemn their authority, slight their reproofs and admonitions, disobey the express commands they give him for his own good, hate to be reformed by the correction they give him, shame their family, grieve their hearts, waste their substance, and threaten to ruin their estate by riotous living - this is a stubborn and rebellious son. He is particularly supposed (Deu 21:20) to be a glutton or a drunkard. This intimates either, (1.) That these were sins which his parents did in a particular manner warn him against, and therefore that in these instances there was a plain evidence that he did not obey their voice. Lemuel had this charge from his mother, Pro 31:4. Note, In the education of children, great care should be taken to suppress all inclinations to drunkenness, and to keep them out of the way of temptations to it; in order hereunto they should be possessed betimes with a dread and detestation of that beastly sin, and taught betimes to deny themselves. Or, (2.) That his being a glutton and a drunkard was the cause of his insolence and obstinacy towards his parents. Note, There is nothing that draws men into all manner of wickedness, and hardens them in it, more certainly and fatally than drunkenness does. When men take to drink they forget the law, they forget all law (Pro 31:5), even that fundamental law of honouring parents.

2. How this criminal is to be proceeded against. His own father and mother are to be his prosecutors, Deu 21:19, Deu 21:20. They might not put him to death themselves, but they must complain of him to the elders of the city, and the complaint must needs be made with a sad heart: This our son is stubborn and rebellious. Note, Those that give up themselves to vice and wickedness, and will not be reclaimed, forfeit their interest in the natural affections of the nearest relations; the instruments of their being justly become the instruments of their destruction. The children that forget their duty must thank themselves and not blame their parents if they are regarded with less and less affection. And, how difficult soever tender parents now find it to reconcile themselves to the just punishment of their rebellious children, in the day of the revelation of the righteous judgment of God all natural affection will be so entirely swallowed up in divine love that they will acquiesce even in the condemnation of those children, because God will be therein for ever glorified.

3. What judgment is to be executed upon him: he must publicly stoned to death by the men of his city, Deu 21:21. And thus, (1.) The paternal authority was supported, and God, our common Father, showed himself jealous for it, it being one of the first and most ancient streams derived from him that is the fountain of all power. (2.) This law, if duly executed, would early destroy the wicked of the land. (Psa 101:8), and prevent the spreading of the gangrene, by cutting off the corrupt part betimes; for those that were bad members of families would never make good members of the commonwealth. (3.) It would strike an awe upon children, and frighten them into obedience to their parents, if they would not otherwise be brought to their duty and kept in it: All Israel shall hear. The Jews say, "The elders that condemned him were to send notice of it in writing all the nation over, In such a court, such a day, we stoned such a one, because he was a stubborn and rebellious son." And I have sometimes wished that as in all our courts there is an exact record kept of the condemnation of criminals, in perpetuam rei memoriam - that the memorial may never be lost, so there might be public and authentic notice given in print to the kingdom of such condemnations, and the executions upon them, by the elders themselves, in terrorem - that all may hear and fear.

II. A law for the burying of the bodies of malefactors that were hanged, Deu 21:22. The hanging of them by the neck till the body was dead was not used at all among the Jews, as with us; but of such as were stoned to death, if it were for blasphemy, or some other very execrable crime, it was usual, by order of the judges, to hang up the dead bodies upon a post for some time, as a spectacle to the world, to express the ignominy of the crime, and to strike the greater terror upon others, that they might not only hear and fear, but see and fear. Now it is here provided that, whatever time of the day they were thus hanged up, at sun-set they should be taken down and buried, and not left to hang out all night; sufficient (says the law) to such a man is this punishment; hitherto let it go, but no further. Let the malefactor and his crime be hidden in the grave. Now, 1. God would thus preserve the honour of human bodies and tenderness towards the worst of criminals. The time of exposing dead bodies thus is limited for the same reason that the number of stripes was limited by another law: Lest thy brother seem vile unto thee. Punishing beyond death God reserves to himself; as for man, there is no more that he can do. Whether therefore the hanging of malefactors in chains, and setting up their heads and quarters, be decent among Christians that look for the resurrection of the body, may perhaps be worth considering. 2. Yet it is plain there was something ceremonial in it; by the law of Moses the touch of a dead body was defiling, and therefore dead bodies must not be left hanging up in the country, because, by the same rule, this would defile the land. But, 3. There is one reason here given which has reference to Christ. He that is hanged is accursed of God, that is, it is the highest degree of disgrace and reproach that can be done to a man, and proclaims him under the curse of God as much as any external punishment can. Those that see him thus hang between heaven and earth will conclude him abandoned of both and unworthy of either; and therefore let him not hang all night, for that would carry it too far. Now the apostle, showing how Christ has redeemed us from the curse of the law by being himself made a curse for us, illustrates it by comparing the brand here put on him that was hanged on a tree with the death of Christ, Gal 3:13. Moses, by the Spirit, uses this phrase of being accursed of God, when he means no more than being treated most ignominiously, that it might afterwards be applied to the death of Christ, and might show that in it he underwent the curse of the law for us, which is a great enhancement of his love and a great encouragement to our faith in him. And (as the excellent bishop Patrick well observes) this passage is applied to the death of Christ, not only because he bore our sins and was exposed to shame, as these malefactors were that were accursed of God, but because he was in the evening taken down from the cursed tree and buried (and that by the particular care of the Jews, with an eye to this law, Joh 19:31), in token that now, the guilt being removed, the law was satisfied, as it was when the malefactor had hanged till sun-set; it demanded no more. Then he ceased to be a curse, and those that were his. And, as the land of Israel was pure and clean when the dead body was buried, so the church is washed and cleansed by the complete satisfaction which thus Christ made.

Matthew Henry's Commentary on the Whole Bible (Matthew Henry, 1706–1714). Public domain. Reformatted for the web by BibleHearth; wording unchanged. Public domain · Read the original

Jamieson-Fausset-Brown Bible Commentary on Deuteronomy 21

Three Scottish scholars working phrase by phrase through the whole Bible. Where a translation had to choose one English wording, they tell you what the Hebrew or Greek actually says and what the alternatives were. Useful when you want to know why two Bibles word the same verse differently.

Before you start: Written in 1871 and organised around short quoted phrases followed by a dash, then the explanation. It reads more like reference notes than prose, and it assumes you have the verse in front of you.

Chapter overview and 4 notes on Deuteronomy 21

What this chapter is doing

EXPIATION OF UNCERTAIN MURDER. (Deu 21:1-9)

If one be found slain . . . lying in the field, and it be not known who hath slain him—The ceremonies here ordained to be observed on the discovery of a slaughtered corpse show the ideas of sanctity which the Mosaic law sought to associate with human blood, the horror which murder inspired, as well as the fears that were felt lest God should avenge it on the country at large, and the pollution which the land was supposed to contract from the effusion of innocent, unexpiated blood. According to Jewish writers, the Sanhedrin, taking charge of such a case, sent a deputation to examine the neighborhood. They reported to the nearest town to the spot where the body was found. An order was then issued by their supreme authority to the elders or magistrates of that town, to provide the heifer at the civic expense and go through the appointed ceremonial. The engagement of the public authorities in the work of expiation, the purchase of the victim heifer, the conducting it to a "rough valley" which might be at a considerable distance, and which, as the original implies, was a wady, a perennial stream, in the waters of which the polluting blood would be wiped away from the land, and a desert withal, incapable of cultivation; the washing of the hands, which was an ancient act symbolical of innocence—the whole of the ceremonial was calculated to make a deep impression on the Jewish, as well as on the Oriental, mind generally; to stimulate the activity of the magistrates in the discharge of their official duties; to lead to the discovery of the criminal, and the repression of crime.

Verse 10

THE TREATMENT OF A CAPTIVE TAKEN TO WIFE. (Deu 21:10-23)

When thou goest to war . . . and seest among the captives a beautiful woman . . . that thou wouldest have her to thy wife—According to the war customs of all ancient nations, a female captive became the slave of the victor, who had the sole and unchallengeable control of right to her person. Moses improved this existing usage by special regulations on the subject. He enacted that, in the event that her master was captivated by her beauty and contemplated a marriage with her, a month should be allowed to elapse, during which her perturbed feelings might be calmed, her mind reconciled to her altered condition, and she might bewail the loss of her parents, now to her the same as dead. A month was the usual period of mourning with the Jews, and the circumstances mentioned here were the signs of grief—the shaving of the head, the allowing the nails to grow uncut, the putting off her gorgeous dress in which ladies, on the eve of being captured, arrayed themselves to be the more attractive to their captors. The delay was full of humanity and kindness to the female slave, as well as a prudential measure to try the strength of her master's affections. If his love should afterwards cool and he become indifferent to her person, he was not to lord it over her, neither to sell her in the slave market, nor retain her in a subordinate condition in his house; but she was to be free to go where her inclinations led her.

Verse 15

If a man have two wives, one beloved, and another hated—In the original and all other translations, the words are rendered "have had," referring to events that have already taken place; and that the "had" has, by some mistake, been omitted in our version, seems highly probable from the other verbs being in the past tense—"hers that was hated," not "hers that is hated"; evidently intimating that she (the first wife) was dead at the time referred to. Moses, therefore, does not here legislate upon the case of a man who has two wives at the same time, but on that of a man who has married twice in succession, the second wife after the decease of the first; and there was an obvious necessity for legislation in these circumstances; for the first wife, who was hated, was dead, and the second wife, the favorite, was alive; and with the feelings of a stepmother, she would urge her husband to make her own son the heir. This case has no bearing upon polygamy, which there is no evidence that the Mosaic code legalized.

Verse 18

If a man have a stubborn and rebellious son—A severe law was enacted in this case. But the consent of both parents was required as a prevention of any abuse of it; for it was reasonable to suppose that they would not both agree to a criminal information against their son except from absolute necessity, arising from his inveterate and hopeless wickedness; and, in that view, the law was wise and salutary, as such a person would be a pest and nuisance to society. The punishment was that to which blasphemers were doomed [Lev 24:23]; for parents are considered God's representatives and invested with a portion of his authority over their children.

Verse 22

if a man have committed a sin . . . and thou hang him on a tree—Hanging was not a Hebrew form of execution (gibbeting is meant), but the body was not to be left to rot or be a prey to ravenous birds; it was to be buried "that day," either because the stench in a hot climate would corrupt the air, or the spectacle of an exposed corpse bring ceremonial defilement on the land.

Next: Deuteronomy Chapter 22

Jamieson-Fausset-Brown Bible Commentary (Robert Jamieson, A. R. Fausset and David Brown, 1871). Public domain. Reformatted for the web by BibleHearth; wording unchanged. Public domain · Read the original

Where to go deeper on Deuteronomy 21

Both of these are free to read and neither can be reproduced here — The Gospel Coalition and BibleProject keep their work under their own copyright. They are worth the click, especially if you are new to reading the Bible.