Hebrews 11:38
(of whom the world was not worthy), wandering in deserts and mountains and caves, and the holes of the earth.
Revelation 6:15
And the kings of the earth, and the magnates, and the commanders of thousands, and the rich, and the strong, and every bondman and freeman, hid themselves in the caves and in 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
(of whom the world was not worthy), wandering in deserts and mountains and caves, and the holes of the earth.
Revelation 6:15
And the kings of the earth, and the magnates, and the commanders of thousands, and the rich, and the strong, and every bondman and freeman, hid themselves in the caves and in the rocks of the mountains;