Numbers 8:15

After that the Levites may come to serve at the tent of meeting, once you have ceremonially cleansed them and presented them as a presentation offering.

Numbers 8:11

Aaron is to present the Levites before the Lord as a presentation offering from the Israelites, so that they may perform the Lord’s work.

Numbers 8:13

“You are to have the Levites stand before Aaron and his sons, and you are to present them before the Lord as a presentation offering.

Exodus 29:24

and put all of them in the hands of Aaron and his sons and wave them as a presentation offering before the Lord.

Numbers 3:12

“See, I have taken the Levites from the Israelites in place of every firstborn Israelite from the womb. The Levites belong to Me,

Numbers 3:23-37

The Gershonite clans camped behind the tabernacle on the west side,

Numbers 4:3-32

men from 30 years old to 50 years old—everyone who is qualified to do work at the tent of meeting.

1 Chronicles 23:1-32

When David was old and full of days, he installed his son Solomon as king over Israel.

1 Chronicles 25:1-26

David and the officers of the army also set apart some of the sons of Asaph, Heman, and Jeduthun, who were to prophesy accompanied by lyres, harps, and cymbals. This is the list of the men who performed their service:

Treasury of Scripture Knowledge

Summary

And after that shall the Levites go in to do the service of the tabernacle of the congregation: and thou shalt cleanse them, and offer them for an offering.

Bible References

Go in

Numbers 8:11
Aaron is to present the Levites before the Lord as a presentation offering from the Israelites, so that they may perform the Lord’s work.
Numbers 3:23
The Gershonite clans camped behind the tabernacle on the west side,
Numbers 4:3
men from 30 years old to 50 years old—everyone who is qualified to do work at the tent of meeting.

And offer

Numbers 8:11
Aaron is to present the Levites before the Lord as a presentation offering from the Israelites, so that they may perform the Lord’s work.
Numbers 3:12
“See, I have taken the Levites from the Israelites in place of every firstborn Israelite from the womb. The Levites belong to Me,

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.