Exodus 18:23-27

18:23 If you do this thing, and God so commands you, then you will be able to endure, and all these people will be able to go home satisfied.”

18:24 Moses listened to his father-in-law and did everything he had said. 18:25 Moses chose capable men from all Israel, and he made them heads over the people, rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens. 18:26 They judged the people under normal circumstances; the difficult cases they would bring to Moses, but every small case they would judge themselves.

18:27 Then Moses sent his father-in-law on his way, and so Jethro went to his own land.