Ephesians 4:29

29 Let no corrupt word proceed out of your mouth, but what is good for necessary edification, that it may impart grace to the hearers.

We are to build people up in a godly manner. Too often we say things to hurt people, so here God tells us to watch what comes out of our mouths. Talk in a way the lifts up not tears down. Just think of the difference this would make in the world if we all would obey this Word from God!