'Mountains' in the Bible

You must by all means destroy all the places where the nations you are about to dispossess worship their gods -- on the high mountains and hills and under every leafy tree.

For a fire has been kindled by my anger, and it burns to lowest Sheol; it consumes the earth and its produce, and ignites the foundations of the mountains.

with the best of the ancient mountains and the harvest produced by the age-old hills;