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