Then the Lord spoke to Moses, saying:
So you shall appoint Aaron and his sons, and they shall attend to their priesthood; but the outsider who comes near shall be put to death.”
“Now behold, I Myself have taken the Levites from among the children of Israel instead of every firstborn who opens the womb among the children of Israel. Therefore the Levites shall be Mine,
Then you shall know that I have sent this commandment to you, That My covenant with Levi may continue,” Says the Lord of hosts.