Luke 4:22
And all extolled him; and they wondered at the words of grace which proceeded out of his mouth, and said: Is not this the son of Joseph?
Matthew 12:35
The good man, out of his good treasury, brings forth good things; and the evil man, out of his evil treasury, brings forth evil things.
Luke 19:22
Then he said to him: Out of your own mouth will I judge you, you wicked servant. You knew that I was a hard man, taking up what I did not lay down, and reaping what I did not sow.
Ephesians 4:29
Let no impure speech come out of your mouth, but whatever is good for needful edification, that it may give grace to the hearers:
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that you may know how you ought to answer every one.