57 This is the record of the Levites who were counted according to their clans: The Gershonite clan, named after their ancestor Gershon. The Kohathite clan, named after their ancestor Kohath. The Merarite clan, named after their ancestor Merari. 58 The Libnites, the Hebronites, the Mahlites, the Mushites, and the Korahites were all subclans of the Levites. Now Kohath was the ancestor of Amram, 59 and Amram's wife was named Jochebed. She also was a descendant of Levi, born among the Levites in the land of Egypt. Amram and Jochebed became the parents of Aaron, Moses, and their sister, Miriam. 60 To Aaron were born Nadab, Abihu, Eleazar, and Ithamar. 61 But Nadab and Abihu died when they burned before the Lord the wrong kind of fire, different than he had commanded. 62 The men from the Levite clans who were one month old or older numbered 23,000. But the Levites were not included in the registration of the rest of the people of Israel because they were not given an allotment of land when it was divided among the Israelites.
Matthew Henry's Commentary on Numbers 26:57-62
Commentary on Numbers 26:57-62
(Read Numbers 26:57-62)
Levi was God's tribe; therefore it was not numbered with the rest, but alone. It came not under the sentence, that none of them should enter Canaan excepting Caleb and Joshua.