57 This is the enrollment of the Levites by their clans: of Gershon, the clan of the Gershonites; of Kohath, the clan of the Kohathites; of Merari, the clan of the Merarites. 58 These are the clans of Levi: the clan of the Libnites, the clan of the Hebronites, the clan of the Mahlites, the clan of the Mushites, the clan of the Korahites. Now Kohath was the father of Amram. 59 The name of Amram's wife was Jochebed daughter of Levi, who was born to Levi in Egypt; and she bore to Amram: Aaron, Moses, and their sister Miriam. 60 To Aaron were born Nadab, Abihu, Eleazar, and Ithamar. 61 But Nadab and Abihu died when they offered unholy fire before the Lord. 62 The number of those enrolled was twenty-three thousand, every male one month old and upward; for they were not enrolled among the Israelites because there was no allotment given to them 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.