Isaías 2:21

21 They will flee to caverns in the rocks and to the overhanging crags from the fearful presence of the Lord and the splendor of his majesty, when he rises to shake the earth.

21 to go into the caverns of the rocks, and into the clefts of the ragged rocks, from before the terror of Jehovah, and from the glory of his majesty, when he ariseth to shake mightily the earth.