12 “I have taken the Levites from among the Israelites in place of the first male offspring of every Israelite woman. The Levites are mine,
References for Numbers 3:12
13 for all the firstborn are mine. When I struck down all the firstborn in Egypt, I set apart for myself every firstborn in Israel, whether human or animal. They are to be mine. I am the LORD.”
References for Numbers 3:13