Proverbs 15:28
The heart of a righteous man meditates 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 always be ready for a defense to every man who asks you a word about the hope in you, with mildness and fear.
Proverbs 15:2
The tongue of the wise utters knowledge rightly, but the mouth of fools pours out folly.
1 Kings 3:23-28
Then the king said, The one says, This is my son that lives, and thy son is the dead. And the other says, No, but thy son is the dead, and my son is the living.
Proverbs 10:19
Transgression is not lacking in the multitude of words, but he who refrains his lips does wisely.
Proverbs 13:16
Every prudent man works with knowledge, but a fool flaunts folly.
Proverbs 16:23
The heart of the wise instructs his mouth, and adds learning to his lips.
Proverbs 29:11
A fool utters all his anger, but a wise man keeps it back and calms it.
Proverbs 29:20
See thou a man who is hasty in his words? There is more hope for a fool than for him.
Ecclesiastes 5:2
Be not rash with thy mouth, and let not thy heart be hasty to utter anything before God. For God is in heaven, and thou upon earth. Therefore let thy words be few.
Ecclesiastes 5:6
Do not allow thy mouth to cause thy flesh to sin, nor say thou before the [heavenly] agent, that is was an error. Why should God be angry at thy voice, and destroy the work of thy hands?
Ecclesiastes 10:12-14
The words of a wise man's mouth are gracious, but the lips of a fool will swallow himself up.
Matthew 12:34
Ye offspring 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 also many insubordinate men, vain talkers and deceivers, especially those from circumcision,
James 3:6-8
And the tongue is a fire, the world of unrighteousness. Thus, the tongue is made to lead among our body-parts, defiling the whole body, and setting the cycle of nature on fire, and being set on fire by hell.
2 Peter 2:18
For, uttering swollen things of vanity, they entice (to sensuality by lusts of flesh) those who actually escaped from those who live in error,