And Moses commanded the children of Israel according to the word of the LORD, saying, The tribe of the sons of Joseph hath said {d} well.

(d) For the tribe could not have continued, if the inheritance which was the maintenance of it should have been alienated to others.

Jamieson-Fausset-Brown Bible Commentary

5-12. Moses commanded the children of Israel according to the word of the Lord-The plea appeared just and reasonable; and, accordingly an enactment was made by which the daughters of Zelophehad, while left to the free choice of their husbands, were restricted to marry not only within their own tribe, but within the family of their father's tribe-that is, one of their cousins. This restriction, however, was imposed only on those who were heiresses. The law was not applicable to daughters in different circumstances (1Ch 23:22)-for they might marry into another tribe; but if they did so, they were liable to forfeit their patrimonial inheritance, which, on the death of their father or brothers, went to the nearest of the family kinsmen. Here was an instance of progressive legislation (see also Ex 18:27) in Israel, the enactments made being suggested by circumstances. But it is deserving of special notice that those additions to, or modifications of, the law were confined to civil affairs; while the slightest change was inadmissible in the laws relating to worship or the maintenance of religion.

Matthew Henry's Concise Commentary

36:5-12 Those who consult the oracles of God, concerning the making of their heavenly inheritance sure, shall not only be directed what to do, but their inquiries shall be graciously accepted. God would not have one tribe enriched at the expense of another. Each tribe was to keep to its own inheritance. The daughters of Zelophehad submitted to this appointment. How could they fail to marry well, when God himself directed them? Let the people of God learn how suitable and proper it is, like the daughters of Israel, to be united only to their own people. Ought not every true believer Israel, to be united only to their own people. Ought not every true believer in Jesus, to be very attentive in the near and tender relations of life, to be united only to such as are united to the Lord? All our intentions and inclinations ought to be subjected to the will of God, when that is made known to us, and especially in contracting marriage. Although the word of God allows affection and preference in this important relation, it does not sanction that foolish, ungovernable, and idolatrous passion, which cares not what may be the end; but in defiance of authority, determines upon self-gratification. All such conduct, however disguised, is against common sense, the interests of society, the happiness of the marriage relation, and, what is still more evil, against the religion of Christ.

Matthew Henry's Whole Bible Commentary

Verses 5-13

Here is, I. The matter settled by express order from God between the daughters of Zelophehad and the rest of the tribe of Manasseh. The petition is assented to, and care taken to prevent the inconvenience feared: The tribe of the sons of Joseph hath said well, v. 5. Thus those that consult the oracles of God concerning the making of their heavenly inheritance sure shall not only be directed what to do, but their enquiries shall be graciously accepted, and they shall have not only their well done, but their well said, good and faithful servant. Now the matter is thus accommodated: these heiresses must be obliged to marry, not only within their own tribe of Manasseh, but within the particular family of the Hepherites, to which they did belong. 1. They are not determined to any particular persons; there was choice enough in the family of their father: Let them marry to whom they think best. As children must preserve the authority of their parents, and not marry against their minds, so parents must consult the affections of their children in disposing of them, and not compel them to marry such as they cannot love. Forced marriages are not likely to prove blessings. 2. Yet they are confined to their own relations, that their inheritance may not go to another family. God would have them know that the land being to be divided by lot, the disposal whereof was of the Lord, they could not mend, and therefore should not alter, his appointment. The inheritances must not remove from tribe to tribe (v. 7), lest there should be confusion among them, their estates entangled, and their genealogies perplexed. God would not have one tribe to be enriched by the straitening and impoverishing of another, since they were all alike the seed of Abraham his friend.

II. The law, in this particular case, was made perpetual, and to be observed whenever hereafter the like case should happen, v. 8. Those that were not heiresses might marry into what tribe they pleased (though we may suppose that, ordinarily, they kept within their own tribe), but those that were must either quit their claim to the inheritance or marry one of their own family, that each of the tribes might keep to its own inheritance, and one tribe might not encroach upon another, but throughout their generations there might remain immovable the ancient landmarks, set, not by their fathers, but by the God of their fathers.

III. The submission of the daughters of Zelophehad to this appointment. How could they but marry well, and to their satisfaction, when God himself directed them? They married their father's brothers' sons, v. 10-12. By this it appears, 1. That the marriage of cousin-germans is not in itself unlawful, nor within the degrees prohibited, for then God would not have countenanced these marriages. But, 2. That ordinarily it is not advisable; for, if there had not been a particular reason for it (which cannot hold in any case now, inheritances being not disposed of as then by the special designation of Heaven), they would not have married such near relations. The world is wide, and he that walks uprightly will endeavour to walk surely.

IV. The conclusion of this whole book, referring to the latter part of it: These are the judgments which the Lord commanded in the plains of Moab (v. 13), these foregoing, ever since ch. 26, most of which related to their settlement in Canaan, into which they were now entering. Whatever new condition God is by his providence bringing us into, we must beg of him to teach us the duty of it, and to enable us to do it, that we may do the work of the day in its day, of the place in its place.