ISB ~ 2 Corinthians 10 v3 - 6

Behind Paul’s visible opponents in Corinth lurk powers that are invisible and demonic. He is confident, however, that his ministry leads divine power to the world through weapons of spiritual warfare:preaching, prayer, Scripture, and the Sacraments. Not even the proud and sophisticated arguments of his rivals can withstand the truth of his gospel, which alone brings every thought of man under the Lordship of Christ. See note on 2 Cor 6:7.

• There is no excuse for thinking that some sins are punished while others go unpunished. The apostle says every proud obstacle will be punished; and every sin, because it expresses contempt for the divine law, is a proud height that exalts itself against the knowledge of God (St. Basil, On the Judgment of God).