Numbers 3:1-4

21st Century King James Version

3 These also are the generations of Aaron and Moses in the day that the Lord spoke with Moses on Mount Sinai.

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

³ These are the names of the sons of Aaron, the priests who were anointed, whom he consecrated to minister in the priest’s office.

⁴ And Nadab and Abihu died before the Lord when they offered strange fire before the Lord in the Wilderness of Sinai; and they had no children. And Eleazar and Ithamar ministered in the priest’s office in the sight of Aaron their father.