ISV(i)
2 The sons of Aaron were Nadab the first-born, Abihu, Eleazar, and Ithamar
3 who were anointed priests and whom he consecrated as priests.
4 Nadab and Abihu died in the LORD’s presence when they offered unauthorized fire before him in the Sinai wilderness. Since they didn’t have their own children, Eleazar and Ithamar ministered as priest under the authority of Aaron their father.