Numbers 1:16

The Census of the Tribes

1:16 These were the ones chosen from the community, leaders of their ancestral tribes. They were the heads of the thousands of Israel.

Numbers 26:55

26:55 The land must be divided by lot; and they will inherit in accordance with the names of their ancestral tribes.

Numbers 31:4

31:4 You must send to the battle a thousand men from every tribe throughout all the tribes of Israel.”