Don't quench the Spirit.
Of all the outrageous interpretations of this place, the prize must go to them who see the passage as an admonition not to discourage charismatic gifts, namely, tongue-speaking!  Ward's comment is, "The church would have been harmed by the discouragement of men with gifts of spontaneous utterance!"[31] It is too bad Paul did not know that, for he did everything that even an apostle could do to stop it altogether down at Corinth. Besides, the word here is not "discourage" but "quench," which means to put out altogether.  Cousins is doubtless correct in the opinion that "The emphasis is ethical, a warning against conduct which might stifle the Spirit's operation."[32] For a list of the seven sins that people may commit against the Holy Spirit, see under  Ephesians 4:30 in my Commentary on Galatians, Ephesians, Philippians and Colossians.