Numbers 3:9-11

International Standard Version

⁹ Assign^[a] the descendants of Levi to Aaron and his sons from among the Israelis. ¹⁰ Appoint Aaron and his sons so that they are to take responsibility for their priesthood. Any unauthorized^[b] person who approaches it is to be put to death.”

The Descendants of Levi as Substitutes for the First-born

¹¹ Later, the Lord told Moses,