Ephesians 4:29

29Anyπᾶςwordλόγοςunwholesomeσαπρὸςout ofἐκtheτοῦmouthστόματοςof youὑμῶνnotμὴlet go forthἐκπορευέσθω,butἀλλὰifεἴanyτιςgoodἀγαθὸςforπρὸςedificationοἰκοδομὴνof theτῆςneedχρείας,so thatἵναit may giveδῷgraceχάρινto thoseτοῖςhearingἀκούουσιν.

Do not let any rotten word go forth out of your⁺ mouth, but if any [is] good for edification of the need, so that it may give grace to those hearing.