Exodus 24:15
And Moses went up to the mountain, and the cloud covered the mountain.
Exodus 19:9
And Jehovah said to Moses, Lo, I will come to thee in the cloud's thick darkness, that the people may hear when I speak with thee, and believe thee also for ever. And Moses told the words of the people to Jehovah.
Exodus 19:16
And it came to pass on the third day, when it was morning, that there were thunders and lightnings and a heavy cloud on the mountain, and the sound of the trumpet exceeding loud; and the whole people that was in the camp trembled.
Matthew 17:5
While he was still speaking, behold, a bright cloud overshadowed them, and lo, a voice out of the cloud, saying, This is my beloved Son, in whom I have found my delight: hear him.
2 Chronicles 6:1
Then said Solomon: Jehovah said that he would dwell in the thick darkness.