Numbers 3:4-6

World English Bible

⁴ Nadab and Abihu died before Yahweh when they offered strange fire before Yahweh in the wilderness of Sinai, and they had no children. Eleazar and Ithamar ministered in the priest’s office in the presence of Aaron their father.

⁵ Yahweh spoke to Moses, saying, ⁶ “Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister to him.