Numbers 8:11

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.

and Aaron shall offer the Levites before Yahweh for a wave offering, on the behalf of the children of Israel, that it may be theirs to do the service of Yahweh.

and Aaron shall offer the Levites before Jehovah for a wave-offering, on the behalf of the children of Israel, that it may be theirs to do the service of Jehovah.

and Aaron hath waved the Levites -- a wave-offering before Jehovah, from the sons of Israel, and they have been -- for doing the service of Jehovah.

Aaron is to present the Levites before the LORD as a wave offering from the sons of Israel, so that they may perform the service of the LORD.