Numbers 3:10-13 And thou shalt appoint Aaron and his sons that they shall guard their priesthood; and the stranger that comes near shall be put to death.

EJ2000⁽ⁱ⁾ ¹⁰ And thou shalt appoint Aaron and his sons that they shall guard their priesthood; and the stranger that comes near shall be put to death. ¹¹ And the LORD spoke unto Moses, saying, ¹² Behold, I have taken the Levites from among the sons of Israel instead of all the firstborn that open the womb among the sons of Israel; therefore the Levites shall be mine; ¹³ because all the firstborn are mine; from the day that I smote all the firstborn in the land of Egypt, I sanctified unto me all the firstborn in Israel, both of men and of animals; they shall be mine: I am the LORD.