'Cave' in the Bible

David therefore departed there, and escaped to the cave of Adullam. When his brothers and all his father's house heard it, they went down there to him.

He came to the sheep pens by the way, where there was a cave; and Saul went in to relieve himself. Now David and his men were abiding in the innermost parts of the cave.

So David checked his men with these words, and didn't allow them to rise against Saul. Saul rose up out of the cave, and went on his way.

David also arose afterward, and went out of the cave, and cried after Saul, saying, "My lord the king!" When Saul looked behind him, David bowed with his face to the earth, and did obeisance.

Behold, this day your eyes have seen how that Yahweh had delivered you today into my hand in the cave. Some urged me to kill you; but I spared you; and I said, I will not put forth my hand against my lord; for he is Yahweh's anointed.