Exodus 40: 16 - 21, 34 - 38
16 Thus did Moses; according to all that the LORD commanded him, so he did.
17 And in the first month in the second year, on the first day of the month, the tabernacle was erected.
18 Moses erected the tabernacle; he laid its bases, and set up its frames, and put in its poles, and raised up its pillars;
19 and he spread the tent over the tabernacle, and put the covering of the tent over it, as the LORD had commanded Moses.
20 And he took the testimony and put it into the ark, and put the poles on the ark, and set the mercy seat above on the ark;
21 and he brought the ark into the tabernacle, and set up the veil of the screen, and screened the ark of the testimony; as the LORD had commanded Moses.
34 Then the cloud covered the tent of meeting, and the glory of the LORD filled the tabernacle.
35 And Moses was not able to enter the tent of meeting, because the cloud abode upon it, and the glory of the LORD filled the tabernacle.
36 Throughout all their journeys, whenever the cloud was taken up from over the tabernacle, the people of Israel would go onward;
37 but if the cloud was not taken up, then they did not go onward till the day that it was taken up.
38 For throughout all their journeys the cloud of the LORD was upon the tabernacle by day, and fire was in it by night, in the sight of all the house of Israel.

EWTN