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 give an answer to every man that asks you a reason of the hope that is in you with meekness and fear:
Proverbs 15:2
The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness.
1 Kings 3:23-28
Then said the king, The one says, This is my son that lives, and your son is dead: and the other says, Nay; but your son is dead, and my son is living.
Proverbs 10:19
In the multitude of words there lacks not sin: but he that refrains his lips is wise.
Proverbs 13:16
Every prudent man deals with knowledge: but a fool lays open his folly.
Proverbs 16:23
The heart of the wise teaches his mouth, and adds learning to his lips.
Proverbs 29:11
A fool utters all his mind: but a wise man keeps it in till afterwards.
Proverbs 29:20
See you a man that is hasty in his words? there is more hope for a fool than for him.
Ecclesiastes 5:2
Be not rash with your mouth, and let not your heart be hasty to utter anything before God: for God is in heaven, and you upon earth: therefore let your words be few.
Ecclesiastes 5:6
Permit not your mouth to cause your flesh to sin; neither say before the angel, that it was an error: why should God be angry at your voice, and destroy the work of your hands?
Ecclesiastes 10:12-14
The words of a wise man's mouth are gracious; but the lips of a fool will swallow him up.
Matthew 12:34
O generation of vipers, how can you, being evil, speak good things? for out of the abundance of the heart the mouth speaks.
Titus 1:10-11
For there are many unruly and vain talkers and deceivers, especially they 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 nature; and it is set on fire by hell.
2 Peter 2:18
For when they speak great swelling words of vanity, they allure through the lusts of the flesh, through much wantonness, those that have just escaped from them who live in error.