Verse 7. - Every one... shall keep himself to the inheritance of the tribe of his fathers. This was to be the general rule which governed all such questions. Every Israelite had his own share in the inheritance of his tribe, and with that he was to be content, and not seek to intrude on other tribes. Accordingly the decision in the case of the daughters of Zelophehad is extended to all similar cases.

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.So shall not the inheritance of the children of Israel remove from tribe to tribe,.... Which shows that this concerns all the tribes of Israel, though yet not fully expressed, as it is afterwards:

for everyone of the children of Israel shall keep himself to the inheritance of the tribe of his fathers; or cleave (a) to a wife in that tribe for marriage; this word is used in the original institution of it, Genesis 2:24 though they were not strictly obliged to marry in their own tribe; and frequently they did intermarry with other tribes, which, had it been unlawful, would not have been done, as it was by kings, and priests, and others; nor was there any danger of an inheritance going into another tribe by a man's marrying into it; wherefore this signifies only, that they were to be careful to keep their inheritances in their tribe; and therefore if any of them had no sons, only daughters, he was to marry them in his own tribe and family, that the inheritance might not remove, as follows(a) "adhaerebunt", Montanus, Vatablus, Junius & Tremellius.