Numbers 3:10-13 "Appoint Aaron and his sons to serve as priests. Anyone else who tries to do the priests' duties must be put to death."

VIN⁽ⁱ⁾ ¹⁰ "Appoint Aaron and his sons to serve as priests. Anyone else who tries to do the priests' duties must be put to death." ¹¹ the LORD said to Moses: ¹² "I myself receive the Levites from the midst of the Israelites in the place of all the firstborn of the offspring of the womb from the Israelites. The Levites will be mine ¹³ because every firstborn is mine. The day I killed every firstborn male in Egypt, I set apart as holy every firstborn in Israel, whether human or animal. They will be mine. I am the LORD."