'Cliffs' in the Bible

Look, I [am] sending for many fishermen,' {declares} Yahweh, 'and they will fish them out, and {afterward} I will send for many hunters, and they will hunt them from every mountain, and from every hill, and from the clefts of the cliffs.

"Look, I [am] against you, O mountain of the destruction," {declares} Yahweh, "the [one] that destroys the whole earth. And I will stretch out my hand against you, and I will roll you down from the cliffs, and I will make you as a mountain burned away.