Numbers 3:10-31
English Standard Version
11And the Lord spoke to Moses, saying,
12"Behold, I have taken the Levites from among the people of Israel instead of every firstborn who opens the womb among the people of Israel. The Levites shall be mine,
13for all the firstborn are mine. On the day that I struck down all the firstborn in the land of Egypt, I consecrated for my own all the firstborn in Israel, both of man and of beast. They shall be mine: I am the Lord."
14And the Lord spoke to Moses in the wilderness of Sinai, saying,
15"List the sons of Levi, by fathers ' houses and by clans; every male from a month old and upward you shall list."
16So Moses listed them according to the word of the Lord, as he was commanded.
17And these were the sons of Levi by their names: Gershon and Kohath and Merari.
18And these are the names of the sons of Gershon by their clans: Libni and Shimei.
19And the sons of Kohath by their clans: Amram, Izhar, Hebron, and Uzziel.
20And the sons of Merari by their clans: Mahli and Mushi. These are the clans of the Levites, by their fathers ' houses.
21To Gershon belonged the clan of the Libnites and the clan of the Shimeites; these were the clans of the Gershonites.
22Their listing according to the number of all the males from a month old and upward was 7,500.
23The clans of the Gershonites were to camp behind the tabernacle on the west,
24with Eliasaph, the son of Lael as chief of the fathers ' house of the Gershonites.
25And the guard duty of the sons of Gershon in the tent of meeting involved the tabernacle, the tent with its covering, the screen for the entrance of the tent of meeting,
26the hangings of the court, the screen for the door of the court that is around the tabernacle and the altar, and its cords — all the service connected with these.
27To Kohath belonged the clan of the Amramites and the clan of the Izharites and the clan of the Hebronites and the clan of the Uzzielites; these are the clans of the Kohathites.
28According to the number of all the males, from a month old and upward, there were 8,600, keeping guard over the sanctuary.
29The clans of the sons of Kohath were to camp on the south side of the tabernacle,
30with Elizaphan the son of Uzziel as chief of the fathers ' house of the clans of the Kohathites.
31And their guard duty involved the ark, the table, the lampstand, the altars, the vessels of the sanctuary with which the priests minister, and the screen; all the service connected with these.