'Rocks' in the Bible

And behold, the veil of the temple was rent in two from the top to the bottom; and the earth did quake; and the rocks were rent;

These are they who are hidden rocks in your love-feasts when they feast with you, shepherds that without fear feed themselves; clouds without water, carried along by winds; autumn leaves without fruit, twice dead, plucked up by the roots;

And the kings of the earth, and the princes, and the chief captains, and the rich, and the strong, and every bondman and freeman, hid themselves in the caves and in the rocks of the mountains;

and they say to the mountains and to the rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: