Exodus 18:21-22, 25-26

But select from all the people some capable, honest men who fear God and hate bribes. Appoint them as leaders over groups of one thousand, one hundred, fifty, and ten. They should always be available to solve the people’s common disputes, but have them bring the major cases to you. Let the leaders decide the smaller matters themselves. They will help you carry the load, making the task easier for you.

He chose capable men from all over Israel and appointed them as leaders over the people. He put them in charge of groups of one thousand, one hundred, fifty, and ten. These men were always available to solve the people’s common disputes. They brought the major cases to Moses, but they took care of the smaller matters themselves.