Numbers 3:10-12

International Standard Version

¹⁰ Appoint Aaron and his sons so that they are to take responsibility for their priesthood. Any unauthorized^[a] 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, ¹² “I’m taking the descendants of Levi for myself from among the Israelis in place of every first-born who opens the womb.^[b] The descendants of Levi belong to me