Proverbs 15:28
The heart of the righteous studies to answer, but the mouth of the wicked pours out evil things.
1 Peter 3:15
but sanctify the Lord God in your hearts, and be ready always to respond to every man that asks you a reason of the hope that is in you with meekness and reverence,
Proverbs 15:2
The tongue of the wise shall adorn wisdom, but the mouth of fools shall speak foolishness.
1 Kings 3:23-28
Then said the king, The one saith, This is my son that is alive, and thy son is dead. And the other saith, No; but thy son is dead, and my son is alive.
Proverbs 10:19
In the multitude of words there is no lack of rebellion, but he that refrains his lips is wise.
Proverbs 13:16
Every sane man works according to wisdom: but the fool shall manifest his folly.
Proverbs 16:23
The heart of the wise causes his mouth to be prudent, and with his lips he shall increase doctrine.
Proverbs 29:11
The fool gives full rein to his spirit, but the wise man in the end will bring it into rest.
Proverbs 29:20
Seest thou a man that is hasty in his words? there is more hope of a fool than of him.
Ecclesiastes 5:2
Do not be rash with thy mouth and do not let thy heart be hasty to utter any thing before God, for God is in heaven and thou upon earth; therefore let thy words be few.
Ecclesiastes 5:6
Suffer not thy mouth to cause thy flesh to sin; neither say thou before the angel, that it was ignorance. Why should thou cause God to be angry because of thy voice and destroy the work of thine hands?
Ecclesiastes 10:12-14
The words from the mouth of the wise man are grace, but the lips of the fool will swallow up himself.
Matthew 12:34
O generation of vipers, how can ye, being evil, speak good things? For out of the abundance of the heart the mouth speaks.
Titus 1:10-11
For there are many insubordinate and vain talkers and deceivers of souls, especially those of the circumcision,
James 3:6-8
And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defiles the whole body and sets on fire the course of our nature; and it is set on fire of hell.
2 Peter 2:18
For speaking arrogant words of vanity, they allure through the lusts of the flesh, through much wantonness, those that were clean escaped from those who converse in error,