Exodus 40:35

Now when Moses went into the tent of meeting to speak with Him, he heard the voice speaking to him from above the mercy seat that was on the ark of the testimony, from between the two cherubim, so He spoke to him.

Now it happened that when the priests came out of the holy place, the cloud filled the house of Yahweh,

so that the priests could not stand to minister because of the cloud, for the glory of Yahweh filled the house of God.

Then the glory of Yahweh rose up from the cherub to the threshold of the house, and the house was filled with the cloud, and the court was filled with the brightness of the glory of Yahweh.

And the sanctuary was filled with smoke from the glory of God and from His power; and no one was able to enter the sanctuary until the seven plagues of the seven angels were finished.