Numbers 8:13 in the King James Version
And thou shalt set the Levites before Aaron, and before his sons, and offer them for an offering unto the LORD.
Context
12 “The Levites shall lay their hands on the heads of the bulls, and you shall offer the one for a sin offering and the other for a burnt offering to the LORD, to make atonement for the Levites.
13 You shall set the Levites before Aaron and before his sons, and offer them as a wave offering to the LORD.
14 Thus you shall separate the Levites from among the children of Israel, and the Levites shall be mine.