Batsowr means inaccessible, fortified, or cut off. It derives from batsar (H1219), "to cut off" or "to make inaccessible." The word describes cities with high walls, deep moats, and strong gates — places that seem impregnable to assault. It can also describe something withheld or stored up, as grapes reserved during vintage.
The fortified city is a recurring image in the Old Testament's theology of security. When the twelve spies reported on Canaan, they described cities that were "great and fortified up to heaven" (Deuteronomy 1:28). The implied question is: who can breach such defenses? The answer throughout Scripture is that no fortification stands against the LORD. Jericho's walls fell to trumpets. The Psalms repeatedly contrast those who trust in fortified walls with those who trust in God: "The name of the LORD is a strong tower; the righteous run into it and are safe" (Proverbs 18:10).