Nehemiah 11:16 Midrash

וְשַׁבְּתַ֨י וְיוֹזָבָ֜ד עַל־הַמְּלָאכָ֤ה הַחִֽיצֹנָה֙ לְבֵ֣ית הָאֱלֹהִ֔ים מֵרָאשֵׁ֖י הַלְוִיִּֽם׃

and Shabbethai and Jozabad, of the chiefs of the Levites, who had the oversight of the outward business of the house of God;

Read midrashic interpretation of Nehemiah 11:16: and classical rabbinic exegesis.