"Let no corrupt word proceed out of your mouth, but what is good for necessary edification, that it may impart grace to the hearers. And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. Let all bitterness, wrath, anger, clamor and evil speaking be put away from you, with all malice. And be kind to one another, tenderhearted, forgiving one another, even as God in Christ forgave you." -Ephesians 4:29-32 (NKJV)
Additional Scripture
-John 16:7-11 (NKJV)
The story is told of a critical person who approached Methodism founder Joh Wesley at a church service, saying, "My talent is to speak my mind." Wesley allegedly replied: "That's one talent that the Lord would not care a bit if you buried!"
Humorous as it is, there is nothing funny about the unwholesome and unconstructive talk that so often comes out of our mouths. We are exhorted to get rid of bitterness, rage, anger, brawling, slander and malice. That's a good start; however, it doesn't end there.
We must then replace it with that which is much better: kindness, compassion, forgiveness and love. This transformative process is a work of the Spirit. Our appropriate response to the work of the Spirit is repentance, and the bearing of spiritual fruit in keeping with that repentance.