כָּֽל־הַפְּקֻדִ֡ים אֲשֶׁר֩ פָּקַ֨ד מֹשֶׁ֧ה וְאַהֲרֹ֛ן וּנְשִׂיאֵ֥י יִשְׂרָאֵ֖ל אֶת־הַלְוִיִּ֑ם לְמִשְׁפְּחֹתָ֖ם וּלְבֵ֥ית אֲבֹתָֽם׃
All those that were numbered of the Levites, whom Moses and Aaron and the princes of Israel numbered, by their families, and by their fathers’houses,
Read midrashic interpretation of Numbers 4:46: and classical rabbinic exegesis.