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

Read Isaiah 2:21 Using Other Translations

To go into the clefts of the rocks, and into the tops of the ragged rocks, for fear of the LORD, and for the glory of his majesty, when he ariseth to shake terribly the earth.
to enter the caverns of the rocks and the clefts of the cliffs, from before the terror of the LORD, and from the splendor of his majesty, when he rises to terrify the earth.
while they crawl away into caverns and hide among the jagged rocks in the cliffs. They will try to escape the terror of the LORD and the glory of his majesty as he rises to shake the earth.