Numbers 26:60 KJV

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 Korathites. And Kohath begat Amram.

59And the name of Amram’s wife was Jochebed, the daughter of Levi, whom her mother bare to Levi in Egypt: and she bare unto Amram Aaron and Moses, and Miriam their sister.

60And unto Aaron was born Nadab, and Abihu, Eleazar, and Ithamar.

61And Nadab and Abihu died, when they offered strange fire before the LORD.

62And those that were numbered of them were twenty and 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.