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.

Proverbs 10:6

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

Proverbs 13:14

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

Proverbs 18:4

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

Psalm 37:30-31

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

Psalm 107:42

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

Proverbs 10:20-21

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

Proverbs 10:32

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

Proverbs 15:7

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

Proverbs 16:22-24

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

Proverbs 20:15

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

Ecclesiastes 10:12-14

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

Matthew 12:34-37

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.

Ephesians 4:29

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.

James 3:5-8

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

Summary

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

Bible References

Mouth of a

Proverbs 10:20
The tongue of the upright man is like tested silver: the heart of the evil-doer is of little value.
Proverbs 13:14
The teaching of the wise is a fountain of life, turning men away from the nets of death.
Proverbs 15:7
The lips of the wise keep knowledge, but the heart of the foolish man is not right.
Proverbs 16:22
Wisdom is a fountain of life to him who has it; but the punishment of the foolish is their foolish behaviour.
Proverbs 18:4
The words of a man's mouth are like deep waters: the fountain of wisdom is like a flowing stream.
Proverbs 20:15
There is gold and a store of corals: but the lips of knowledge are a jewel of great price.
Psalm 37:30
The mouth of the good man says words of wisdom; the talk of his tongue is of righteousness.
Ephesians 4:29
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.

But

Proverbs 10:6
Blessings are on the head of the upright, but the face of sinners will be covered with sorrow.
Psalm 107:42
The upright see it and are glad: the mouth of the sinner is stopped.
Ecclesiastes 10:12
The words of a wise man's mouth are sweet to all, but the lips of a foolish man are his destruction.
Matthew 12:34
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.
James 3:5
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!

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain