'Mountaintops' in the Bible

When Gaal saw the people, he said to Zebul, “Look, people are coming down from the mountaintops!” But Zebul said to him, “The shadows of the mountains look like men to you.”

On that day their strong cities will belike the abandoned woods and mountaintopsthat were abandoned because of the Israelites;there will be desolation.

Let the desert and its cities shout,the settlements where Kedar dwells cry aloud.Let the inhabitants of Sela sing for joy;let them cry out from the mountaintops.

You will all know that I am Yahweh when their slain lie among their idols around their altars, on every high hill, on all the mountaintops, and under every green tree and every leafy oak—the places where they offered pleasing aromas to all their idols.

They sacrifice on the mountaintops,and they burn offerings on the hills,and under oaks, poplars, and terebinths,because their shade is pleasant.And so your daughters act promiscuouslyand your daughters-in-law commit adultery.