וְשָׁמְר֞וּ אֶת־מִשְׁמֶ֣רֶת אֹֽהֶל־מוֹעֵ֗ד וְאֵת֙ מִשְׁמֶ֣רֶת הַקֹּ֔דֶשׁ וּמִשְׁמֶ֕רֶת בְּנֵ֥י אַהֲרֹ֖ן אֲחֵיהֶ֑ם לַעֲבֹדַ֖ת בֵּ֥ית יְהוָֽה׃ (פ)
and that they should keep the charge of the tent of meeting, and the charge of the holy place, and the charge of the sons of Aaron their brethren, for the service of the house of the LORD.
Read halakhic rulings (Jewish law) on I Chronicles 23:32: and classical halakhic sources.