15 And when Aaron and his sons have ended covering the sanctuary, and all the utensils of the sanctuary, when the camp setteth forward, then afterwards the sons of Kohath shall come to carry it; but they shall not touch the holy things, lest they die. This is what the sons of Kohath have to carry in the tent of meeting.
Matthew Henry's Commentary on Numbers 4:15
Commentary on Numbers 4:4-20
(Read Numbers 4:4-20)
The Kohathites were to carry the holy things of the tabernacle. All the holy things were to be covered; not only for security and respect, but to keep them from being seen. This not only marked the reverence due to holy things, but the mystery of the things signified by those types, and the darkness of the dispensation. But now, through Christ, the case is altered, and we are encouraged to come boldly to the throne of grace.