Numbers 8:9

And thou shalt bring the Levites before the tabernacle of witness; and thou shalt assemble all the congregation of the sons of Israel.

And thou shalt bring the Levites before the tabernacle of the congregation: and thou shalt gather the whole assembly of the children of Israel together:

You shall present the Levites before the Tent of Meeting. You shall assemble the whole congregation of the children of Israel.