Psalm 37:30

The good man, out of his good treasury, casts forth good things; and the evil man, out of his evil treasury, casts forth evil things.

Let no evil word proceed out of your mouth, but that which is good for useful edification, that it may afford benefit to those that hear.

Let your words always be with kindness, seasoned with salt, that you may know how to answer every one.

Treasury of Scripture Knowledge

The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.

The good man, out of his good treasury, casts forth good things; and the evil man, out of his evil treasury, casts forth evil things.

Let no evil word proceed out of your mouth, but that which is good for useful edification, that it may afford benefit to those that hear.

Let your words always be with kindness, seasoned with salt, that you may know how to answer every one.