Then a cloud covered the tent of the congregation, and the glory of the LORD filled the tabernacle. Then a cloud covered the tent - Thus God gave his approbation of the work; and as this was visible, so it was a sign to all the people that Jehovah was among them.
And the glory of the Lord filled the tabernacle - How this was manifested we cannot tell; it was probably by some light or brightness which was insufferable to the sight, for Moses himself could not enter in because of the cloud and the glory, Exodus 40:35. Precisely the same happened when Solomon had dedicated his temple; for it is said that the cloud filled the house of the Lord, so that the priests could not stand to minister because of the cloud; for the glory of the Lord had filled the house of the Lord; 1 Kings 8:10, 1 Kings 8:11. Previously to this the cloud of the Divine glory had rested upon that tent or tabernacle which Moses had pitched without the camp, after the transgression in the matter of the molten calf; but now the cloud removed from that tabernacle and rested upon this one, which was made by the command and under the direction of God himself. And there is reason to believe that this tabernacle was pitched in the center of the camp, all the twelve tribes pitching their different tents in a certain order around it.