Judges 6:2
“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.”
And the children of Israel did evil in the sight of the Lord: and the Lord delivered them into the hand of Midian seven years.
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.
And so it was, when Israel had sown, that the Midianites came up, and the Amalekites, and the children of the east, even they came up against them;
And they encamped against them, and destroyed the increase of the earth, till thou come unto Gaza, and left no sustenance for Israel, neither sheep, nor ox, nor ass.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“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 high places, and in pits.”
“(Of whom the world was not worthy:) they wandered in deserts, and in mountains, and in dens and caves of the earth.”
“And both of them discovered themselves unto the garrison of the Philistines: and the Philistines said, Behold, the Hebrews come forth out of the holes where they had hid themselves.”
“Because thou servedst not the Lord thy God with joyfulness, and with gladness of heart, for the abundance of all things;”
“And I will set my face against you, and ye shall be slain before your enemies: they that hate you shall reign over you; and ye shall flee when none pursueth you.”