'Mountains' in the Bible

On the tops of the mountains they sacrifice, and on the hills they make offerings, under oak, poplar, and terebinth, because their shade is good. Therefore your daughters play the whore, and all your daughters-in-law commit adultery.

The high places of Aven, the sin of Israel, will be destroyed. Thorn and thistle will grow on their altars. They will say to the mountains, "Cover us," and to the hills, "Fall on us."