9
Turn the Levites over to Aaron and his sons; they are the ones assigned to work full time for him.
10
Appoint Aaron and his sons to minister as priests; anyone else who tries to elbow his way in will be put to death."
12
"I have taken the Levites from among the People of Israel as a stand-in for every Israelite mother's firstborn son. The Levites belong to me.
13
All the firstborn are mine - when I killed all the firstborn in Egypt, I consecrated for my own use every firstborn in Israel, whether human or animal. They belong to me. I am God."