Foolish Speech

Proverbs 10:14  
Wise men lay up knowledge: but the mouth of the foolish is near destruction.

Proverbs 14:3  
In the mouth of the foolish is a rod of pride: but the lips of the wise shall preserve them.

Proverbs 14:23  
In all labour there is profit: but the talk of the lips tendeth only to penury.

Proverbs 15:2  
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.

Proverbs 15:14  
The heart of him that hath understanding seeketh knowledge: but the mouth of fools feedeth on foolishness.

Proverbs 18:7  
A fool's mouth is his destruction, and his lips are the snare of his soul.

Proverbs 26:7  
The legs of the lame are not equal: so is a parable in the mouth of fools.

Proverbs 26:9  
As a thorn goeth up into the hand of a drunkard, so is a parable in the mouth of fools.

Boasting

Proverbs 20:6  
Most men will proclaim every one his own goodness: but a faithful man who can find?

Proverbs 20:14  
It is naught, it is naught, saith the buyer: but when he is gone his way, then he boasteth.

Proverbs 25:14  
Whoso boasteth himself of a false gift is like clouds and wind without rain.

Proverbs 27:1-2  
Boast not thyself of to morrow; for thou knowest not what a day may bring forth.  Let another man praise thee, and not thine own mouth; a stranger, and not thine own lips.  

Proverbs 30:32  
If thou hast done foolishly in lifting up thyself, or if thou hast thought evil, lay thine hand upon thy mouth.

Speaking impulsively

Proverbs 10:19  
In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.

Cross Reference: Prov 17:27, James 1:19, 3:2

Proverbs 12:13  
The wicked is snared by the transgression of his lips: but the just shall come out of trouble.

Proverbs 12:23  
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.

Proverbs 13:3  
He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.

Proverbs 15:28  
The heart of the righteous studieth to answer: but the mouth of the wicked poureth out evil things.

Proverbs 18:13  
He that answereth a matter before he heareth it, it is folly and shame unto him.

Proverbs 20:25  
It is a snare to the man who devoureth that which is holy, and after vows to make enquiry.

Proverbs 29:11  
A fool uttereth all his mind: but a wise man keepeth it in till afterwards.

Judges 16:17, Prov 12:23; 17:27-28

Proverbs 29:20  
Seest thou a man that is hasty in his words? there is more hope of a fool than of him.

Total Verses: 23
Total Passages: 22