Exodus 18:24 MSG

[24] Moses listened to the counsel of his father-in-law and did everything he said. Moses picked competent men from all Israel and set them as leaders over the people who were organized by the thousand, by the hundred, by fifty, and by ten. They took over the everyday work of judging among the people. They brought the hard cases to Moses, but in the routine cases they were the judges. Then Moses said good-bye to his father-in-law who went home to his own country.