Deuteronomy 1:13-15

13Take for yourselves wise men, and understanding, and known among your tribes, and I will make them rulers over you.1 14And ye answered me, and said, The thing which thou hast spoken is good for us to do. 15So I took the heads of your tribes, wise men, and known, and made them heads over you, captains over thousands, and captains over hundreds, and captains over fifties, and captains over tens, and officers among your tribes.2