Numbers 8:13-17
Numbers 8:13
And you shall have the Levites stand before Aaron and his sons so as to present them as a wave offering to the Lord.
Numbers 8:14
“So you shall single out the Levites from among the sons of Israel, and the Levites shall be Mine.
Numbers 8:15
Then after that the Levites may go in to serve the tent of meeting. But you shall cleanse them and present them as a wave offering;
Numbers 8:16
for they are exclusively given to Me from among the sons of Israel. I have taken them for Myself instead of the firstborn of every womb, the firstborn of all the sons of Israel.
Numbers 8:17
For every firstborn among the sons of Israel is Mine, among the people and among the animals; on the day that I fatally struck all the firstborn in the land of Egypt, I sanctified them for Myself.