2 Corinthians 10:5

As in Ephesians 6:12, Paul described the enemy as impersonal. We wage war against invisible, intangible spiritual forces, though obviously Satan is behind these forces. Satan’s strategy is not only to use demons (Ephesians 6:12) but also speculations (theories) and incorrect information that contradicts God’s revealed truth. The propaganda of our enemy consists of ideas that run counter to the truth of God. "Speculations" or "arguments" (2 Corinthians 10:4 in NIV) contrast with revelations that God has given, and they contradict those revelations. "Lofty things" or "pretensions" include any human act or attitude that asserts itself as being superior to God’s will or truth. Paul claimed to make it his aim to bring all such thoughts and actions into submission to what God has revealed in His Word. He regarded this as obedience to Christ. He was a bondservant to the truth of God in his thinking. His desire was that everyone would voluntarily submit to such servant status.

"It is not a case of the Christian’s effort to force all his thoughts to be pleasing to Christ. Rather the picture seems to be that of a military operation in enemy territory that seeks to thwart every single hostile plan of battle, so that there will be universal allegiance to Christ." [Note: Harris, p. 380.]