'Supervisors' in the Bible

Let Pharaoh do [this], and let him appoint supervisors over the land, and let him take one-fifth from the land of Egypt in the seven years of abundance.

And the men did the work faithfully. Over them as supervisors [were] appointed Jahath and Obadiah, the Levites from the Merarites, and Zechariah and Meshullam from the Kohathites. And [other] Levites, all who were skilled in instruments of song,