Exodus 18:23

וְאַתָּה תֶחֱזֶה מִכָּל־הָעָם אַנְשֵׁי־חַיִל יִרְאֵי אֱלֹהִים אַנְשֵׁי אֱמֶת שֹׂנְאֵי בָצַע וְשַׂמְתָּ עֲלֵהֶם שָׂרֵי אֲלָפִים שָׂרֵי מֵאוֹת שָׂרֵי חֲמִשִּׁים וְשָׂרֵי עֲשָׂרֹֽת

Moreover thou shalt provide out of all the people able men, such as fear God, men of truth, hating unjust gain; and place such over them, to be rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.

וְשָׁפְטוּ אֶת־הָעָם בְּכָל־עֵת וְהָיָה כָּל־הַדָּבָר הַגָּדֹל יָבִיאוּ אֵלֶיךָ וְכָל־הַדָּבָר הַקָּטֹן יִשְׁפְּטוּ־הֵם וְהָקֵל מֵֽעָלֶיךָ וְנָשְׂאוּ אִתָּֽךְ

And let them judge the people at all seasons; and it shall be, that every great matter they shall bring unto thee, but every small matter they shall judge themselves; so shall they make it easier for thee and bear the burden with thee.

וַיִּשְׁמַע מֹשֶׁה לְקוֹל חֹתְנוֹ וַיַּעַשׂ כֹּל אֲשֶׁר אָמָֽר

So Moses hearkened to the voice of his father-in-law, and did all that he had said.

וַיִּבְחַר מֹשֶׁה אַנְשֵׁי־חַיִל מִכָּל־יִשְׂרָאֵל וַיִּתֵּן אֹתָם רָאשִׁים עַל־הָעָם שָׂרֵי אֲלָפִים שָׂרֵי מֵאוֹת שָׂרֵי חֲמִשִּׁים וְשָׂרֵי עֲשָׂרֹֽת

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.