Hebrews 11:38

(The world did not deserve such people). They wandered in deserts and mountains, [living] in caves and [even] holes in the ground.

Treasury of Scripture Knowledge

Summary

David therefore departed thence, and escaped to the cave Adullam: and when his brethren and all his father's house heard it, they went down thither to him.

The cave

Bible References

The cave

Hebrews 11:38
(The world did not deserve such people). They wandered in deserts and mountains, [living] in caves and [even] holes in the ground.