Proverbs 10:11

The mouth of the upright man is a fountain of life, but the mouth of the evil-doer is a bitter cup.

Blessings are on the head of the upright, but the face of sinners will be covered with sorrow.

The teaching of the wise is a fountain of life, turning men away from the nets of death.

The words of a man's mouth are like deep waters: the fountain of wisdom is like a flowing stream.

The mouth of the good man says words of wisdom; the talk of his tongue is of righteousness.

The upright see it and are glad: the mouth of the sinner is stopped.

The tongue of the upright man is like tested silver: the heart of the evil-doer is of little value.

The lips of the upright man have knowledge of what is pleasing, but twisted are the mouths of evil-doers.

The lips of the wise keep knowledge, but the heart of the foolish man is not right.

Wisdom is a fountain of life to him who has it; but the punishment of the foolish is their foolish behaviour.

There is gold and a store of corals: but the lips of knowledge are a jewel of great price.

The words of a wise man's mouth are sweet to all, but the lips of a foolish man are his destruction.

You offspring of snakes, how are you, being evil, able to say good things? because out of the heart's store come the words of the mouth.

Let no evil talk come out of your mouth, but only what is good for giving necessary teaching, and for grace to those who give ear.

Even so the tongue is a small part of the body, but it takes credit for great things. How much wood may be lighted by a very little fire!

Treasury of Scripture Knowledge

The mouth of a righteous man is a well of life: but violence covereth the mouth of the wicked.