Exodus 18:25

“The land of Egypt is at your disposal; have your father and your brothers settle in the best of the land, let them settle in the land of Goshen; and if you know any excellent men among them, then put them in charge of my livestock.”

“But you shall select excellent men out of all the people, those who fear God, men of truth, those who hate greedy gain; and you shall place these men over them as leaders of thousands, of hundreds, of fifties, and of tens.

“With you, moreover, there shall be a man of each tribe, each one head of his father’s household.

“These are they who were called upon by the congregation, the leaders of their fathers’ tribes; they were the heads of divisions of Israel.”

Yahweh therefore said to Moses, “Gather for Me seventy men from the elders of Israel, whom you know to be the elders of the people and their officers, and take them to the tent of meeting, and let them take their stand there with you.

Then David numbered the people who were with him and set over them commanders of thousands and commanders of hundreds.