Numbers 10:4
When only one trumpet is sounded, then only the leaders of the clans are to gather around you.
Exodus 18:21
You should choose capable men from all the people. Find men who respect God. These must be men you can trust who hate corruption. Put them in charge of groups of thousands, hundreds, fifties and tens.
Numbers 7:2
The leaders of Israel, the heads of the households, those tribal leaders who helped in the census came to give their offerings.
Numbers 1:4-16
One man from each tribe will help you. Each of these men must be the head of a household.
Deuteronomy 1:15
So I took the chief of your tribes, wise men and known, and made them rulers over you. I made them captains over thousands, and captains over hundreds, and captains over fifties, and captains over tens, and officers among your tribes.