'Rocks' in the Bible

"Go into the rocks! Hide in the dust to escape the terror of the LORD and to escape the glory of his majesty!

"They will enter caverns in the rocks and holes in the ground to escape the presence of the terror of the LORD, to escape the splendor of his majesty when he arises to terrify the earth.

They will enter caverns in the rocks and clefts in the cliffs, to escape the terror of the LORD and to escape the splendor of his majesty, when he arises to terrorize the earth.

you who burn with lust among the oaks, under every spreading tree, who slaughter your children in the ravines, under the clefts of the rocks?