Numbers 1:20

1:20 And they were as follows:

The descendants of Reuben, the firstborn son of Israel: According to the records of their clans and families, all the males twenty years old or older who could serve in the army were listed by name individually.

Numbers 33:54

33:54 You must divide the land by lot for an inheritance among your families. To a larger group you must give a larger inheritance, and to a smaller group you must give a smaller inheritance. Everyone’s inheritance must be in the place where his lot falls. You must inherit according to your ancestral ¹  tribes.

---

¹ tn Heb “of your fathers.”