Deuteronomy 1:13-15

13You must choose some wise men who understand what is right. Choose people that you know, from each of your tribes. Then I will give them authority as your leaders.’

14You answered me, ‘That is a good idea!’

15So I chose men that you knew were wise to be the leaders in your tribes. I gave them authority to rule over you. Some were leaders of groups of 1,000 men. Some led groups of 100 men, or 50 men, or ten men. I also chose other officers for each tribe.