Passage
Let no corrupt word go out of your mouth, but if [there be] any good one for needful edification, that it may give grace to those that hear [it].
Let no corrupt word go out of your mouth, but if [there be] any good one for needful edification, that it may give grace to those that hear [it].
Ephesians 4:27 neither give room for the devil.
Ephesians 4:28 Let the stealer steal no more, but rather let him toil, working what is honest with [his] hands, that he may have to distribute to him that has need.
Ephesians 4:29 Let no corrupt word go out of your mouth, but if [there be] any good one for needful edification, that it may give grace to those that hear [it].
Ephesians 4:30 And do not grieve the Holy Spirit of God, with which ye have been sealed for [the] day of redemption.
Ephesians 4:31 Let all bitterness, and heat of passion, and wrath, and clamour, and injurious language, be removed from you, with all malice;
The verse centers on "grace", "corrupt", "word", "mouth", "good", "needful", "edification", and "give". It is saying that the verse draws attention to "grace" and "corrupt", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 28's "Let the stealer steal no more but..." into verse 30's "And do not grieve the Holy Spirit...", so "grace" and "corrupt" belong inside that flow. In Ephesians context, the local focus is grace, union with Christ, the church, and new creation.
A plain takeaway is to answer the verse's own emphasis on "grace" and "corrupt" with trust shaped by these words, not by a vague optimism outside the passage.