Numbers 3:4-6

Revised Geneva Translation

⁴ And Nadab and Abihu died before the LORD, when they offered strange fire before the LORD in the wilderness of Sinai and had no children. But Eleazar and Ithamar served in the Priest’s office in the sight of Aaron, their father.

⁵ Then the LORD spoke to Moses, saying,

⁶ “Bring the tribe of Levi and set them before Aaron the Priest, so that they may serve him