The Sons of Aaron
(Leviticus 10:1-7)
1This is the account of Aaron and Moses at the time the LORD spoke with Moses on Mount Sinai. 
2These are the names of the sons of Aaron: Nadab the firstborn, then Abihu, Eleazar, and Ithamar. 
3These were Aaron’s  sons, the anointed priests, who were ordained  to serve as priests. 
4Nadab and Abihu, however, died in the presence of the LORD when they offered unauthorized fire before the LORD in the Wilderness of Sinai. And since they had  no sons, only Eleazar and Ithamar served as priests during the lifetime of their father Aaron.
Duties of the Levites
5Then the LORD said to Moses,  
6“Bring the tribe of Levi  and present them to Aaron the priest to assist him.  
7They are to perform  duties for him   and for the whole congregation before the Tent of Meeting, attending  to the service of the tabernacle. 
8They shall take care of  all the furnishings of the Tent of Meeting and fulfill obligations for the Israelites  by attending  to the service of the tabernacle. 
9Assign  the Levites to Aaron and his sons; they have been given exclusively  to him from among the Israelites.  
10So you shall appoint Aaron  and his sons to carry out  the duties of the priesthood; but any outsider who approaches the tabernacle must be put to death.”
11Again the LORD spoke to Moses, saying, 
12“Behold, I have taken  the Levites from among the children of Israel in place of every  firstborn Israelite  from the womb. The Levites belong to Me, 
13for all the firstborn are Mine. On the day I struck down every firstborn in the land of Egypt, I consecrated to Myself all the firstborn in Israel, both man and beast. They are Mine; I am the LORD.”
Registration of the Levites
14Then the LORD spoke to Moses in the Wilderness of Sinai, saying, 
15“Number  the Levites  by their families  and clans. You are to count every male a month old or more.” 
16So Moses numbered them according to the word of the LORD, as he had been commanded. 
17These were the sons of Levi by name: Gershon, Kohath, and Merari. 
18These were the names of the sons of Gershon by their clans: Libni and Shimei. 
19The sons of Kohath by their clans were Amram, Izhar, Hebron, and Uzziel. 
20And the sons of Merari by their clans were Mahli and Mushi. These were the clans of the Levites, according to their families. 
The Gershonites
(Numbers 4:21-28; Numbers 4:38-41; 1 Chronicles 23:7-11)
21From Gershon came the Libnite clan and the Shimeite clan; these  were the Gershonite clans. 
22The number  of all the males a month old or more was 7,500    
23The Gershonite clans were to camp on the west, behind the tabernacle, 
24and the leader of the families  of the Gershonites was Eliasaph son of Lael.
25The duties of the Gershonites  at the Tent of Meeting were the tabernacle and tent, its covering, the curtain for the entrance to the Tent of Meeting, 
26the curtains of the courtyard,  the curtain for the entrance to the courtyard that surrounds the tabernacle  and altar,   and the cords— all the service for these items.
The Kohathites
(Numbers 4:1-20; Numbers 4:34-37; 1 Chronicles 23:12-20)
27From Kohath came the clans of the Amramites, the Izharites,  the Hebronites,  and the Uzzielites;  these  were the clans of the Kohathites. 
28The number of all the males a month old or more was 8,600.    They were responsible for the duties of the sanctuary. 
29The clans of the Kohathites  were to camp on the south side of the tabernacle, 
30and the leader of the families  of the Kohathites  was Elizaphan son of Uzziel. 
31Their duties were the ark, the table, the lampstand, the altars, the articles of the sanctuary  used with them, and the curtain— all the service for these items. 
32The chief of the leaders of the Levites was Eleazar son of Aaron the priest; he oversaw those responsible for the duties of the sanctuary.
The Merarites
(Numbers 4:29-33; Numbers 4:42-49; 1 Chronicles 23:21-23)
33From Merari came the clans of the Mahlites and Mushites;  these  were the Merarite clans. 
34The number  of all the males a month old or more was 6,200.   
35The leader of the families  of the Merarites  was Zuriel son of Abihail; they were to camp on the north side of the tabernacle. 
36The duties assigned to the sons of Merari were the tabernacle’s frames, crossbars, posts, bases, and all its equipment— all the service for these items, 
37as well as the posts of the surrounding courtyard with their bases, tent pegs, and ropes.
Moses and Aaron
38Moses, Aaron, and Aaron’s sons were to camp to the east  of the tabernacle, toward the sunrise, before the Tent of Meeting. They were to perform the duties of the sanctuary as a service  on behalf of the Israelites; but any outsider who approached the sanctuary was to be put to death. 
39The total number of Levites that Moses and Aaron counted by their clans at the LORD’s command, including all the males a month old or more, was 22,000.  
Firstborn Sons Redeemed
40Then the LORD  said to Moses, “Number every firstborn male  of the Israelites a month old or more, and list   their names. 
41You are to take  the Levites for Me— I am the LORD— in place of all the firstborn  of Israel,  and the livestock of the Levites in place of all the firstborn of the livestock  of the Israelites.” 
42So Moses numbered all the firstborn  of the Israelites, as the LORD had commanded him.  
43The total number of the firstborn males a month old or more, listed by name, was 22,273     
44Again the LORD spoke to Moses, saying, 
45“Take  the Levites in place of all the firstborn  of Israel, and the livestock of the Levites in place of their livestock. The Levites belong to Me; I am the LORD. 
46 To redeem the 273   firstborn Israelites  who outnumber  the Levites, 
47you are to collect five  shekels for each one, according to the sanctuary  shekel of twenty gerahs.  
48Give the money to Aaron and his sons as the redemption price for the excess among the Israelites.” 
49So Moses  collected the redemption  money from those in excess of the number redeemed by the Levites. 
50 He collected  the money from the firstborn  of the Israelites: 1,365     shekels, according to the sanctuary shekel. 
51And Moses  gave the redemption money to Aaron and his sons in obedience to the word of the LORD,  just as the LORD had commanded him.