Numbers 4:4

4 `This [is] the service of the sons of Kohath in the tent of meeting, the holy of holies:

Numbers 4:4 Meaning and Commentary

Numbers 4:4

This [shall be] the service of the sons of Kohath, in the
tabernacle of the congregation
What follows, ( Numbers 4:4-15 ) ;

[about] the most holy things;
which Aben Ezra interprets only of the ark, which was indeed a most holy thing, and stood in the most holy place; but there were other holy things, in the care of which the service of the Kohathites lay; as the shewbread table, the candlestick, and the altars of incense and burnt offering, and the vail, and the ministering: vessels, which Jarchi reckons with it, as more holy than all other things.

Numbers 4:4 In-Context

2 `Take up the sum of the sons of Kohath from the midst of the sons of Levi, by their families, by the house of their fathers;
3 from a son of thirty years and upward, even till a son of fifty years, every one going in to the host, to do work in the tent of meeting.
4 `This [is] the service of the sons of Kohath in the tent of meeting, the holy of holies:
5 that Aaron and his sons have come in, in the journeying of the camp, and have taken down the vail of the hanging, and have covered with it the ark of the testimony;
6 and have put on it a covering of badger skin, and have spread a garment completely of blue above, and have placed its staves.
Young's Literal Translation is in the public domain.