Proverbs 10:32

The lips of the righteous bring forth what is acceptable,
But the mouth of the wicked what is perverted.

Ecclesiastes 12:10

The Preacher sought to find delightful words and to write words of truth correctly.

Proverbs 2:12

To deliver you from the way of evil,
From the man who speaks perverse things;

Proverbs 11:11

By the blessing of the upright a city is exalted,
But by the mouth of the wicked it is torn down.

Proverbs 12:6

The words of the wicked lie in wait for blood,
But the mouth of the upright will deliver them.

Proverbs 12:18

There is one who speaks rashly like the thrusts of a sword,
But the tongue of the wise brings healing.

Proverbs 15:2

The tongue of the wise makes knowledge acceptable,
But the mouth of fools spouts folly.

Proverbs 15:28

The heart of the righteous ponders how to answer,
But the mouth of the wicked pours out evil things.

Proverbs 18:6-8

A fool’s lips bring strife,
And his mouth calls for blows.

Ecclesiastes 10:12

Words from the mouth of a wise man are gracious, while the lips of a fool consume him;

Daniel 4:27

Therefore, O king, may my advice be pleasing to you: break away now from your sins by doing righteousness and from your iniquities by showing mercy to the poor, in case there may be a prolonging of your prosperity.’

Titus 2:8

sound in speech which is beyond reproach, so that the opponent will be put to shame, having nothing bad to say about us.

Treasury of Scripture Knowledge

Summary

The lips of the righteous know what is acceptable: but the mouth of the wicked speaketh frowardness.

General references

Bible References

Know

Ecclesiastes 12:10
The Preacher sought to find delightful words and to write words of truth correctly.
Daniel 4:27
Therefore, O king, may my advice be pleasing to you: break away now from your sins by doing righteousness and from your iniquities by showing mercy to the poor, in case there may be a prolonging of your prosperity.’
Titus 2:8
sound in speech which is beyond reproach, so that the opponent will be put to shame, having nothing bad to say about us.

General references

Matthew 15:18
But the things that proceed out of the mouth come from the heart, and those defile the man.