Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
All Commentaries on Ephesians 4:29 Go To Ephesians 4
Cyprian of Carthage
AD 258
Also whist the apostle says: "Let no corrupt communication proceed from thy mouth, but that which is good to the edifying of faith, that it may minister grace unto the hearers.".
Of this same thing in Paul's Epistle to the Ephesians: "Let no evil discourse proceed out of your mouth, but that which is good for the edification of faith, that it may give grace to the hearers."