Proverbs 17:20
He that has a crooked heart finds no good: and he that has a perverse tongue falls into calamity.
Psalm 18:26
With the pure you will show yourself pure; and with the devious you will show yourself shrewd.
Proverbs 3:32
For the perverse is abomination to the LORD: but his secret is with the righteous.
Proverbs 6:12-15
A worthless person, a wicked man, walks with a perverse mouth.
Proverbs 8:13
The fear of the LORD is to hate evil: pride, and arrogance, and the evil way, and the perverse mouth, do I hate.
Proverbs 10:10
He that winks with the eye causes trouble: but a prating fool shall fall.
Proverbs 10:14
Wise men lay up knowledge: but the mouth of the foolish is near destruction.
Proverbs 10:31
The mouth of the just brings forth wisdom: but the perverse tongue shall be cut out.
Proverbs 18:6-7
A fool's lips enter into contention, and his mouth calls for blows.
Ecclesiastes 10:12
The words of a wise man's mouth are gracious; but the lips of a fool will swallow him up.
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.