Numbers 8:15-17

New Century Version

¹⁵ “Make the Levites pure, and present them as an offering so that they may come to work at the Meeting Tent. ¹⁶ They will be given completely to me from the Israelites; I have taken them for myself instead of the firstborn of every Israelite woman. ¹⁷ All the firstborn in Israel—people or animals—are mine. When I killed all the firstborn in Egypt, I set the firstborn in Israel aside for myself.