Judges 6:2 ASV: And the hand of Midian prevailed against Israel; and because of Midian the children of Israel made them the dens which are in the mountains, and the caves, and the strongholds.

Hebrews 11:38 (of whom the world was not worthy), wandering in deserts and mountains and caves, and the holes of the earth.

Judges 6:3 And so it was, when Israel had sown, that the Midianites came up, and the Amalekites, and the children of the east; they came up against them;

1 Samuel 13:6 When the men of Israel saw that they were in a strait (for the people were distressed), then the people did hide themselves in caves, and in thickets, and in rocks, and in coverts, and in pits.

Jeremiah 41:9 Now the pit wherein Ishmael cast all the dead bodies of the men whom he had slain, by the side of Gedaliah (the same was that which Asa the king had made for fear of Baasha king of Israel,) Ishmael the son of Nethaniah filled it with them that were slain.

Jeremiah 48:28 O ye inhabitants of Moab, leave the cities, and dwell in the rock; and be like the dove that maketh her nest over the mouth of the abyss.