Isaiah 2:19

And people shall enter the caves of the rocks and the holes of the ground , from before the terror of the Lord , and from the splendor of his majesty , when he rises to terrify the earth .

People will flee to caves in the rocks and to holes in the ground from the fearful presence of the Lord and the splendor of his majesty, when he rises to shake the earth.

And they shall go into the holes of the rocks, and into the caves of the earth, for fear of the Lord, and for the glory of his majesty, when he ariseth to shake terribly the earth.