Numbers 8:15-17

Modern English Version

¹⁵ And afterwards the Levites will go in to do the service of the tent of meeting, and you will cleanse them and offer them as a wave offering. ¹⁶ For they are completely set aside for Me by the children of Israel. Instead of all who open the womb, instead of the firstborn of all the children of Israel, I have taken them for Myself. ¹⁷ For all the firstborn of the children of Israel are Mine, both man and animal. On the day that I struck every firstborn in the land of Egypt I sanctified them for Myself.