Numbers 4:37

4:37 These were those numbered from the families of the Kohathites, everyone who served in the tent of meeting, whom Moses and Aaron numbered according to the word of the Lord by the authority of Moses.

Numbers 4:41

4:41 These were those numbered from the families of the Gershonites, everyone who served in the tent of meeting, whom Moses and Aaron numbered according to the word of the Lord.

Numbers 16:7

16:7 put fire in them, and set incense on them before the Lord tomorrow, and the man whom the Lord chooses will be holy. You take too much upon yourselves, you sons of Levi!”