Numbers 8:13

And thou shalt set the Levites before Aaron, and before his sons, and offer them for a wave-offering unto Jehovah.

Numbers 8:11

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.

Numbers 8:21

And the Levites purified themselves from sin, and they washed their clothes: and Aaron offered them for a wave-offering before Jehovah; and Aaron made atonement for them to cleanse them.

Numbers 18:6

And I, behold, I have taken your brethren the Levites from among the children of Israel: to you they are a gift, given unto Jehovah, to do the service of the tent of meeting.

Romans 12:1

I beseech you therefore, brethren, by the mercies of God, to present your bodies a living sacrifice, holy, acceptable to God, which is your spiritual service.

Romans 15:16

that I should be a minister of Christ Jesus unto the Gentiles, ministering the gospel of God, that the offering up of the Gentiles might be made acceptable, being sanctified by the Holy Spirit.

Treasury of Scripture Knowledge

Summary

And thou shalt set the Levites before Aaron, and before his sons, and offer them for an offering unto the LORD.

Bible References

Offer them

Romans 12:1
I beseech you therefore, brethren, by the mercies of God, to present your bodies a living sacrifice, holy, acceptable to God, which is your spiritual service.
Romans 15:16
that I should be a minister of Christ Jesus unto the Gentiles, ministering the gospel of God, that the offering up of the Gentiles might be made acceptable, being sanctified by the Holy Spirit.

American Standard Version Public Domain