'Caves' in the Bible

And the hand of Midian prevailed against Israel: and because of the Midianites the children of Israel made them the dens which are in the mountains, and caves, and strong holds.

So he attacked them ruthlessly in a massive slaughter, then left to live in the caves of Etam.

In response, 3,000 soldiers from the tribe of Judah went down to the caves of the rock of Etam and asked Samson, "Don't you know that the Philistines have us in their control? What have you done to us?" "I did to them what they did to me," he answered.

So they said, "No, we won't. But we're going to tie you up securely and transfer you to their custody. But we won't kill you." Then they bound him with two ropes and brought him up from the caves.