Exodus 24:15
And Moses went up into the mount, and a cloud covered the mount.
Exodus 19:9
And the LORD said unto Moses, Lo, I come unto you in a thick cloud, that the people may hear when I speak with you, and believe you forever. And Moses told the words of the people unto the LORD.
Exodus 19:16
And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceedingly loud; so that all the people that were in the camp trembled.
Matthew 17:5
While he yet spoke, behold, a bright cloud overshadowed them: and behold a voice out of the cloud, which said, This is my beloved Son, in whom I am well pleased; hear you him.
2 Chronicles 6:1
Then said Solomon, The LORD has said that he would dwell in the thick darkness.