Numbers 26:57-64

57And these are the numbered of the Levites, after their families: of Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; of Merari, the family of the Merarites.

58These are the families of the Levites: the family of the Libnites, the family of the Hebronites, the family of the Mahlites, the family of the Mushites, the family of the Korahites. — And Kohath begot Amram.

59And the name of Amram's wife was Jochebed, the daughter of Levi, who was born to Levi in Egypt; and she bore to Amram Aaron and Moses, and Miriam their sister.

60And to Aaron were born Nadab, and Abihu, Eleazar, and Ithamar.

61And Nadab and Abihu died, when they presented strange fire before Jehovah.

62And those that were numbered of the [Levites] were twenty-three thousand, all males from a month old and upward; for they were not numbered among the children of Israel, because there was no inheritance given them among the children of Israel.

63These are they that were numbered by Moses and Eleazar the priest, who numbered the children of Israel in the plains of Moab, by the Jordan of Jericho.

64But among these there was not a man numbered by Moses and Aaron the priest, who numbered the children of Israel in the wilderness of Sinai.