Exodus 40:35

³³  And he reared up the court round about the tabernacle and the altar, and set up the hanging of the court gate. So Moses finished the work.

³⁴  Then a cloud covered the tent of the congregation, and the glory of the LORD filled the tabernacle.

³⁵  And Moses was not able to enter into the tent of the congregation, because the cloud abode thereon, and the glory of the LORD filled the tabernacle.

³⁶  And when the cloud was taken up from over the tabernacle, the children of Israel went onward in all their journeys:

³⁷  But if the cloud were not taken up, then they journeyed not till the day that it was taken up.