Luke 4:22
And they all spoke in his praise, and wondered at the words of grace which proceeded from his mouth; and they said, Is not this Josephs son?
Matthew 12:35
The good man, from his good treasure, bringeth out good things; and the evil man, from his evil treasure, bringeth out evil things.
Luke 19:22
He saith to him, Out of thy mouth will I judge thee, wicked servant! thou knewest that I was a harsh man, taking up what I laid not down, and reaping what I did not sow;
Ephesians 4:29
Let no foul language proceed out of your mouth, but whatever is good for edification, as the need may be, that it may benefit the hearers;
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every one.