'Mountains' in the Bible

The mountains will melt under him and the valleys will split apart, like wax in the presence of fire and like water gushing down a steep incline.

Please hear what the LORD says: "Get up and make your case before the mountains, and let the hills listen to your voice.

Listen, you mountains, to the LORD's argument! Listen, you strong foundations of the earth, because the LORD has a dispute with his people, and he will set out his case before Israel.