Numbers 8:16-18

New Century Version

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. ¹⁸ But I have taken the Levites instead of all the firstborn in Israel.