Exodus 18:21, 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.

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.