'Mountains' in the Bible

The mountains will melt under him and the valleys will burst open, like wax before the fire, like water rushing down a slope.

And it will be [that] at the end of those days, the mountain of Yahweh will be established as the highest of the mountains, and it will be lifted up above the hills, and people will stream to it.

Hear now what Yahweh says: "Arise! Plead [your case] with the mountains, and let the hills hear your voice."

Hear, O mountains, the indictment of Yahweh, and you eternal foundations of the earth, for Yahweh has an indictment against his people, and against Israel he contends.