Numbers 36:3

3 And they will become wives in one of the tribes of the children of Israel; so their inheritance shall be taken away from the possession of our fathers, and shall be added to the inheritance of the tribe into which the women shall marry, and shall be taken away from the portion of our inheritance.

Numbers 36:3 Meaning and Commentary

Numbers 36:3

And if they be married to any of the sons of the other tribes
of the children of Israel
Which was not an unreasonable supposition, and perhaps was judged very probable and likely, if some method was not taken to prevent it; which they might conclude from the application of some young men of the other tribes unto them:

then shall their inheritance be taken from the inheritance of our
fathers, and shall be put to the inheritance of the tribe whereunto
they are received;
for the inheritance given unto them would of course, the above being the case, descend to their sons, and whose fathers being of other tribes, it would be fixed there:

so shall it be taken from the lot of our inheritance;
which gave them some concern; for though this was no personal injury to them, nor any detriment to their families and estates, yet, as it was a lessening of their tribe, they were uneasy at it; and the rather they might be, since half their tribe was to settle on that side Jordan, where they now were: and now all this, the suit of the daughters of Zelophehad for their father's inheritance, which was granted them, the address of young men to them as heiresses, the concern of the heads of the tribe of Manasseh on this account; all this, I say, being before they entered into the land, or it was conquered by them, or divided to them by inheritance, show their strong faith and assurance that they should possess it.

Numbers 36:3 In-Context

1 And the heads of the tribe of the sons of Galaad the son of Machir the son of Manasse, of the tribe of the sons of Joseph, drew near, and spoke before Moses, and before Eleazar the priest, and before the heads of the houses of the families of the children of Israel:
2 and they said, The Lord commanded our lord to render the land of inheritance by lot to the children of Israel; and the Lord appointed our lord to give the inheritance of Salpaad our brother to his daughters.
3 And they will become wives in one of the tribes of the children of Israel; so their inheritance shall be taken away from the possession of our fathers, and shall be added to the inheritance of the tribe into which the women shall marry, and shall be taken away from the portion of our inheritance.
4 And if there shall be a release of the children of Israel, then shall their inheritance be added to the inheritance of the tribe into which the women marry, and their inheritance, shall be taken away from the inheritance of our family's tribe.
5 And Moses charged the children of Israel by the commandment of the Lord, saying, Thus says the tribe of the children of Joseph.

The Brenton translation of the Septuagint is in the public domain.