I say this in order that no one may delude you with plausible arguments.
4. This I say, that no man may deceive you. As the contrivances of men have (as we shall afterwards see) an appearance of wisdom, the minds of the pious ought to be preoccupied with this persuasion — that the knowledge of Christ is of itself amply sufficient. And, unquestionably, this is the key that can close the door against all base errors.
Satan spoils souls by beguiling them; he could not ruin you if he did not cheat you. His agents use enticing words and fair speeches to deceive the simple, so you must stand guard against those who would flatter you into evil. The antidote is this: walk in Christ as you received Him, rooted and built up in Him, strengthened in the faith.
AI summary
Commenting on Colossians 2:4-12
And this I say,.... That he had such a conflict for them, and had told them of his care and fear on their account, and had signified his great desire that they might arrive to a more large and certain knowledge of the mysteries of grace, and had asserted that all solid spiritual wisdom and knowledge were in Christ; all which he said, to show...