Hebrews 11:38
(men of whom the world was not worthy), wanderers in the desert and among the hills, in caves and gullies.
Revelation 6:15
Then the kings of the earth, the magnates, the generals, the rich, the strong, slaves and freemen everyone of them, hid in caves and among the rocks of the mountains,
Treasury of Scripture Knowledge
Summary
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.
Bible References
Dens
Hebrews 11:38
(men of whom the world was not worthy), wanderers in the desert and among the hills, in caves and gullies.
Revelation 6:15
Then the kings of the earth, the magnates, the generals, the rich, the strong, slaves and freemen everyone of them, hid in caves and among the rocks of the mountains,