33 But the Levites were not numbered with them, as the Lord commanded Moses.
Numbers 2:33 Cross References - CAB
Numbers 1:47-49
Numbers 26:57-62
57 And the sons of Levi according to their families; to Gershon, the family of the Gershonites; to Kohath, the family of the Kohathites; to Merari, the family of the Merarites.
58 These are the families of the sons of Levi; the family of the Libnites, the family of the Hebronites, the family of the Korahites, and the family of the Musites; and Kohath begot Amram.
59 And the name of his wife was Jochabed, daughter of Levi, who bore these to Levi in Egypt, and she bore to Amram, Aaron and Moses, and Miriam their sister.
60 And to Aaron were born both Nadab and Abiud, and Eleazar, and Ithamar.
61 And Nadab and Abiud died when they offered strange fire before the Lord in the Wilderness of Sinai.
62 And there were according to their numbering, twenty-three thousand, every male from a month old and upward; for they were not numbered among the children of Israel, because they have no inheritance in the midst of the children of Israel.