Numbers 3:2

3:2 These are the names of the sons of Aaron: Nadab, the firstborn, and Abihu, Eleazar, and Ithamar.

Numbers 3:32

3:32 Now the head of all the Levitical leaders was Eleazar son of Aaron the priest. He was appointed over those who were responsible for the sanctuary.

Numbers 20:25

20:25 Take Aaron and Eleazar his son, and bring them up on Mount Hor.

Numbers 26:60

26:60 And to Aaron were born Nadab and Abihu, Eleazar and Ithamar.

Numbers 27:19

27:19 set him before Eleazar the priest and before the whole community, and commission him publicly.