Proverbs 15:28
A righteous man museth in his mind how to do good; but the mind of the ungodly imagineth how he may do harm.
1 Peter 3:15
but sanctify the Lord God in your hearts. Be ready always to give an answer to every man that asketh you a reason of the hope that is in you, and that with meekness and fear:
Proverbs 15:2
A wise tongue commendeth knowledge; a foolish mouth babbleth out nothing but foolishness.
1 Kings 3:23-28
Then said the king, "The one sayeth, 'This that is alive is my son, and the dead is thine.' And the other sayeth, 'Nay: But thy son is the dead and the live child is mine.'"
Proverbs 10:19
Where much babbling is, there must needs be offense; he that refraineth his lips is wisest of all.
Proverbs 13:16
A wise man doth all things with discretion; but a fool will declare his folly.
Proverbs 16:23
A wise heart ordereth his mouth wisely; and amendeth the doctrine in his lips.
Proverbs 29:11
A fool poureth out his spirit altogether, but a wise man keepeth it in till afterward.
Proverbs 29:20
If thou seest a man that is hasty to speak unadvised; thou mayest trust a fool more than him.
Ecclesiastes 5:2
and let not thine heart speak anything rashly 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 for to sin, neither say thou before the angel that it is thy ignorance. For then God will be angry at thy voice, and destroy all the works of thine hands.
Ecclesiastes 10:12-14
The words out of a wise man's mouth are gracious, but the lips of a fool will destroy himself.
Matthew 12:34
O generation of vipers, how can ye say well, when ye yourselves are evil? For of the abundance of the heart, the mouth speaketh.
Titus 1:10-11
For there are many disobedient and talkers of vanity, and deceivers of minds, namely they of the circumcision,
James 3:6-8
and the tongue is fire, and a world of wickedness. So is the tongue set among our members, that it defileth the whole body, and setteth afire all that we have of nature, and is itself set afire, even of hell.
2 Peter 2:18
For when they have spoken the swelling words of vanity, they beguile with wantonness through the lusts of the flesh them that were clean escaped: but now are wrapped in errors.