'Cave' in the Bible

So David departed from there and escaped to the cave of Adullam; and when his brothers and all his father’s household heard of it, they went down there to him.

He came to the sheepfolds on the way, where there was a cave; and Saul went in to relieve himself. Now David and his men were sitting in the inner recesses of the cave.

David persuaded his men with these words and did not allow them to rise up against Saul. And Saul arose, left the cave, and went on his way.

Now afterward David arose and went out of the cave and called after Saul, saying, “My lord the king!” And when Saul looked behind him, David bowed with his face to the ground and prostrated himself.

Behold, this day your eyes have seen that the Lord had given you today into my hand in the cave, and some said to kill you, but my eye had pity on you; and I said, ‘I will not stretch out my hand against my lord, for he is the Lord’s anointed.’