The priests, who are Levites, will always have a man to serve me. He will sacrifice burnt offerings. He will burn grain offerings. And he will offer sacrifices.”
They might serve in my temple. They might be in charge of its gates. They might kill the burnt offerings and sacrifices for the people. And they might stand in front of the people and serve them in other ways.
Bring the Levites from your tribe to join you. They will help you when you and your sons serve at the tent of meeting. That is where the tablets of the covenant law are kept.
But Nadab and Abihu made an offering to the Lord by using fire that wasn’t allowed. So they died in front of him. That happened in the Desert of Sinai. They didn’t have any sons. Only Eleazar and Ithamar served as priests while their father Aaron was living.