Numbers 8:11 in the King James Version
And Aaron shall offer the Levites before the LORD for an offering of the children of Israel, that they may execute the service of the LORD.
Context
10 You shall present the Levites before the LORD. The children of Israel shall lay their hands on the Levites,
11 and Aaron shall offer the Levites before the LORD for a wave offering on the behalf of the children of Israel, that it may be theirs to do the service of the LORD.
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.