וַאֲחֵיהֶ֖ם הַלְוִיִּ֑ם נְתוּנִ֕ים לְכָ֨ל־עֲבוֹדַ֔ת מִשְׁכַּ֖ן בֵּ֥ית הָאֱלֹהִֽים׃
And their brethren the Levites were appointed for all the service of the tabernacle of the house of God.
Read midrashic interpretation of I Chronicles 6:33: and classical rabbinic exegesis.