Exodus 40:34-38

³⁴Then the cloud covered the tent of meeting, and the glory of Yahweh filled the tent. ³⁵Moses wasn`t able to enter into the tent of meeting, because the cloud stayed on it, and Yahweh`s glory filled the tent. ³⁶When the cloud was taken up from over the tent, the children of Israel went onward, throughout all their journeys; ³⁷but if the cloud wasn`t taken up, then they didn`t travel until the day that it was taken up. ³⁸For the cloud of Yahweh was on the tent by day, and there was fire in the cloud by night, in the sight of all the house of Israel, throughout all their journeys.