WEB
After that, the Levites went in to do their service in the Tent of Meeting before Aaron, and before his sons: as Yahweh had commanded Moses concerning the Levites, so they did to them.
YLT
and afterwards have the Levites gone in to do their service in the tent of meeting, before Aaron and before his sons; as Jehovah hath commanded Moses concerning the Levites, so they have done to them.