Reference for Judges 6:2

וַתָּ֥עָז יַד־מִדְיָ֖ן עַל־יִשְׂרָאֵ֑ל מִפְּנֵ֨י מִדְיָ֜ן עָשֽׂוּ לָהֶ֣ם ׀ בְּנֵ֣י יִשְׂרָאֵ֗ל אֶת־הַמִּנְהָרוֹת֙ אֲשֶׁ֣ר בֶּֽהָרִ֔ים וְאֶת־הַמְּעָר֖וֹת וְאֶת־הַמְּצָדֽוֹת׃

And the hand of Midian prevailed against Israel; and because of Midian the children of Israel made them the dens which are in the mountains, and the caves, and the strongholds.