Cross reference
Numbers 17:3
3 And thou shalt write Aaron's name upon the rod of Levi; for there shall be one rod for each head of their fathers' houses.
Exodus 6:16
16 And these are the names of the sons of Levi according to their generations: Gershon, and Kohath, and Merari; and the years of the life of Levi were a hundred thirty and seven years.
Exodus 6:20
20 And Amram took him Jochebed his father's sister to wife; and she bare him Aaron and Moses: and the years of the life of Amram were a hundred and thirty and seven years.
Numbers 3:2-3
2 And these are the names of the sons of Aaron: Nadab the first-born, and Abihu, Eleazar, and Ithamar.
3 These are the names of the sons of Aaron, the priests that were anointed, whom he consecrated to minister in the priest's office.
Numbers 18:1
1 And Jehovah said unto Aaron, Thou and thy sons and thy fathers' house with thee shall bear the iniquity of the sanctuary; and thou and thy sons with thee shall bear the iniquity of your priesthood.
Numbers 18:7
7 And thou and thy sons with thee shall keep your priesthood for everything of the altar, and for that within the veil; and ye shall serve: I give you the priesthood as a service of gift: and the stranger that cometh nigh shall be put to death.