Numbers 4:4

4 This is the religion of the sons of Kohath; Aaron and his sons shall enter into the tabernacle of the bond of peace, and into the holy of holy things, (This is the service of the sons of Kohath; Aaron and his sons shall enter into the Tabernacle of the Covenant, and into the Most Holy Place, or 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 thou the sum, or the number, of the sons of Kohath, from the midst of (the) Levites, by their houses and families,

3 from the thirtieth year and above unto the fiftieth year, of all that enter, that they stand and minister in the tabernacle of the bond of peace. (from thirty years of age up to fifty years old, of all who enter to serve in the Tabernacle of the Covenant.)

4 This is the religion of the sons of Kohath; Aaron and his sons shall enter into the tabernacle of the bond of peace, and into the holy of holy things, (This is the service of the sons of Kohath; Aaron and his sons shall enter into the Tabernacle of the Covenant, and into the Most Holy Place, or the Holy of Holies,)

5 when the tents shall be moved; and they shall do down the veil that hangeth before the gates, and they shall wrap in it the ark of witnessing; (when the tents shall be moved; and they shall take down the Veil that hangeth before the Ark, and they shall wrap the Ark of the Witnessing, that is, the Box containing the tablets of the Law, in it;)

6 and they shall cover it again with a veil of jacinthine skins, and they shall stretch forth above (that) a mantle all of jacinth, and they shall lead in [the] bearing staves. (and they shall wrap it with a leather cover, and put a blue mantle over that, and then put in the carrying bars.)