'Thick Cloud' in the Bible
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.
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.
And he made darkness pavilions round about him, dark waters, and thick clouds of the skies.
Thick clouds are a covering to him, that he sees not; and he walks in the circle of heaven.
He binds up the waters in his thick clouds; and the cloud is not torn under them.
Also with moisture he loads the thick cloud: he scatters his bright cloud:
He made darkness his secret place; his canopy round about him were dark waters and thick clouds of the skies.
At the brightness that was before him his thick clouds passed, with hailstones and coals of fire.
I have blotted out, as a thick cloud, your transgressions, and, as a cloud, your sins: return unto me; for I have redeemed you.
And there stood before them seventy men of the elders of the house of Israel, and in the midst of them stood Jaazaniah the son of Shaphan, with every man his censer in his hand; and a thick cloud of incense went up.