Matthew Poole and continuators on Hebrews 11:38

38 Of whom the world was not worthy they wandred in deserts, and in mountains, and in dens and caves of the earth.

The Spirit intermixeth an Account of what these Persons were, who were so treated, lest the Reader or Hearer of these things might be mistaken of them, judging them to be some heinous Malefactors, who were thus hurried in, and destroyed by the World. VVould you know what manner of Persons they were; be it known to you in the Judgment of God, the best Judge of their Persons and States; they were such as the World did not deserve they should live among them, but were unworthy of their Society, and the Blessings which did attend it; and were it not for their sakes, God would quickly put an End to the sinful World, and burn it up. Such were these as did more for the Preservation of the VVorld, when thus brutishly treated by it, than it would or could do for it self.

Yet were they wandring over the desolate Parts of this Earth, being forced from all Society with Men, to the retirements of wild Beasts in Deserts, and climbing up Mountains and Rocks from their Persecutors, lodging themselves in the natural or artificial Dens and Caves of the Earth, the only Receptacles for these VVorthies, Faith giving them the best Company, God and his Comforts there; See 1 Sam. 22.23, 24. 1 King. 17.3. and 18.13. 1 Mac. 1.53. and 2.28.29, 30.