Introduction to Numbers Chapter 36
This chapter gives an account of an application made by the heads of the tribe of Manasseh, concerning the inheritances of the daughters of Zelophehad, which, should they marry into other tribes, would be removed thither, and so be a loss to theirs, Numbers 36:1, which case was judged worthy of regard; and to remedy this inconvenience, they were ordered to marry into the family of their father's tribe, and this was to be a law to all heiresses for the future in other tribes,
Numbers 36:5 and accordingly the daughters of Zelophehad married their father's brothers' sons, Numbers 36:10.