Numbers 3:3-5

New Catholic Bible

³ These are the names of the sons of Aaron, the priests who were anointed and consecrated to minister in the priesthood. ⁴ Nadab and Abihu died before the Lord when they offered unclean fire to the Lord in the Sinai Desert. They had no children. Eleazar and Ithamar ministered as priests in the presence of their father Aaron.

The Tribe of Levi. ⁵ The Lord spoke to Moses, saying,