אֵ֤לֶּה פְקוּדֵי֙ מִשְׁפְּחֹ֣ת הַקְּהָתִ֔י כָּל־הָעֹבֵ֖ד בְּאֹ֣הֶל מוֹעֵ֑ד אֲשֶׁ֨ר פָּקַ֤ד מֹשֶׁה֙ וְאַהֲרֹ֔ן עַל־פִּ֥י יְהוָ֖ה בְּיַד־מֹשֶֽׁה׃ (ס)
These are they that were numbered of the families of the Kohathites, of all that did serve in the tent of meeting, whom Moses and Aaron numbered according to the commandment of the LORD by the hand of Moses. .
Read halakhic rulings (Jewish law) on Numbers 4:37: and classical halakhic sources.