And all the elders of Israel came, and the priests took up the ark.

Wesley's Notes

8:3 The priests - For although the Levites might do this, Numb 4:15, yet the priests did it at this time, for the greater honour of the solemnity; and because the Levites might not enter into the holy - place, much less into the holy of holies, where it was to be placed, into which the priests themselves might not have entered, if the high - priest alone could have done it.

Matthew Henry's Concise Commentary

8:1-11 The bringing in the ark, is the end which must crown the work: this was done with great solemnity. The ark was fixed in the place appointed for its rest in the inner part of the house, whence they expected God to speak to them, even in the most holy place. The staves of the ark were drawn out, so as to direct the high priest to the mercy-seat over the ark, when he went in, once a year, to sprinkle the blood there; so that they continued of use, though there was no longer occasion to carry it by them. The glory of God appearing in a cloud may signify, 1. The darkness of that dispensation, in comparison with the light of the gospel, by which, with open face, we behold, as in a glass, the glory of the Lord. 2. The darkness of our present state, in comparison with the sight of God, which will be the happiness of heaven, where the Divine glory is unveiled.