For our exhortation is not of error, nor of uncleanness, nor in deception.
While uncleanness expresses impure purpose or motive, guile has reference to improper means; plausible but insincere methods of winning converts; suppression of the truth, ’huckstering the word of God’ (see on 2 Cor. ii. 17); adulterating it for purposes of gain or popularity (Vincent 22-23).