Proverbs 15:28
The heart of the righteous ponders how to answer, but the mouth of the wicked pours out evil things.
1 Peter 3:15
but in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect,
Proverbs 15:2
The tongue of the wise commends knowledge, but the mouths of fools pour out folly.
1 Kings 3:23-28
Then the king said, "The one says, 'This is my son that is alive, and your son is dead'; and the other says, 'No; but your son is dead, and my son is the living one.'"
Proverbs 10:19
When words are many, transgression is not lacking, but whoever restrains his lips is prudent.
Proverbs 13:16
In everything the prudent acts with knowledge, but a fool flaunts his folly.
Proverbs 16:23
The heart of the wise makes his speech judicious and adds persuasiveness to his lips.
Proverbs 29:11
A fool gives full vent to his spirit, but a wise man quietly holds it back.
Proverbs 29:20
Do you see 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 your mouth, nor let your heart be hasty to utter a word before God, for God is in heaven and you are on earth. Therefore let your words be few.
Ecclesiastes 5:6
Let not your mouth lead you into sin, and do not say before the messenger that it was a mistake. 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 win him favor, but the lips of a fool consume him.
Matthew 12:34
You brood of vipers! How can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks.
Titus 1:10-11
For there are many who are insubordinate, empty talkers and deceivers, especially those of the circumcision party.
James 3:6-8
And the tongue is a fire, a world of unrighteousness. The tongue is set among our members, staining the whole body, setting on fire the entire course of life, and set on fire by hell.
2 Peter 2:18
For, speaking loud boasts of folly, they entice by sensual passions of the flesh those who are barely escaping from those who live in error.