1 Kings

Clouds and darkness are round about him: righteousness and judgment are the habitation of his throne.

And the Lord said unto Moses, Speak unto Aaron thy brother, that he come not at all times into the holy place within the vail before the mercy seat, which is upon the ark; that he die not: for I will appear in the cloud upon the mercy seat.

Then said Solomon, The Lord hath said that he would dwell in the thick darkness.

And in it have I put the ark, wherein is the covenant of the Lord, that he made with the children of Israel.

And the people stood afar off, and Moses drew near unto the thick darkness where God was.