“Now, behold, I have taken the Levites from among the sons of Israel instead of every firstborn, the first offspring of the womb among the sons of Israel. So the Levites shall be Mine.
Aaron then shall present the Levites before Yahweh as a wave offering from the sons of Israel, that they may be qualified to perform the service of Yahweh.
for they are wholly given to Me from among the sons of Israel. I have taken them for Myself instead of every first issue of the womb, the firstborn of all the sons of Israel.