Then the temple became so filled with the smoke from God’s glory and might that no one could enter it until the seven plagues of the seven angels had been accomplished.
Now Mount Sinai was completely enveloped in smoke, because the Lord had come down upon it in fire. The smoke rose from it as though from a kiln, and the whole mountain trembled violently.
and said to him: Tell your brother Aaron that he is not to come whenever he pleases into the inner sanctuary, inside the veil, in front of the cover on the ark, lest he die, for I reveal myself in a cloud above the ark’s cover.