Exodus 18:27

²⁵  And Moses chose able men out of all Israel, and made them heads over the people, rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.

²⁶  And they judged the people at all seasons: the hard causes they brought unto Moses, but every small matter they judged themselves.

²⁷  And Moses let his father in law depart; and he went his way into his own land.