Some have misinterpreted and misapplied this text as if it spoke of cosmic level spiritual warfare (i.e., territorial demons). “Strongholds” and every “lofty thing” (NASB) have been taken as referring to demonic spirits who have been assigned by Satan to specific territorial or geographic regions. We then, according to this view, are called to identify, engage, and, as it were, pull them down (ostensibly through prayer, fasting, proclamation, etc.). But the enemies in view are ideas and arguments and philosophies and excuses that are antithetical to the kingdom and glory of God. This isn’t to pass judgment on whether there are territorial spirits, but simply to point out that this isn’t what Paul had in mind when he penned this passage.