Exodus 18:22-27 NLT

22 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.
23 If you follow this advice, and if God commands you to do so, then you will be able to endure the pressures, and all these people will go home in peace.”
24 Moses listened to his father-in-law’s advice and followed his suggestions.
25 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.
26 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.
27 Soon after this, Moses said good-bye to his father-in-law, who returned to his own land.