'Rocks' in the Bible

Behold, the veil of the temple was torn in two from the top to the bottom. The earth quaked and the rocks were split.

The kings of the earth, the princes, the commanding officers, the rich, the strong, and every slave and free person, hid themselves in the caves and in the rocks of the mountains.

They told the mountains and the rocks, "Fall on us, and hide us from the face of him who sits on the throne, and from the wrath of the Lamb,