Proverbs 17:20
One who has a perverse heart doesn't find prosperity, and one who has a deceitful tongue falls into trouble.
Psalm 18:26
With the pure, you will show yourself pure. With the crooked you will show yourself shrewd.
Proverbs 3:32
For the perverse is an abomination to the LORD, but his friendship is with the upright.
Proverbs 6:12-15
A worthless person, a man of iniquity, is he who walks with a perverse mouth;
Proverbs 8:13
The fear of the LORD is to hate evil. I hate pride, arrogance, the evil way, and the perverse mouth.
Proverbs 10:10
One winking with the eye causes sorrow, but a chattering fool will fall.
Proverbs 10:14
Wise men lay up knowledge, but the mouth of the foolish is near ruin.
Proverbs 10:31
The mouth of the righteous brings forth wisdom, but the perverse tongue will be cut off.
Proverbs 18:6-7
A fool's lips come into strife, and his mouth invites beatings.
Ecclesiastes 10:12
The words of a wise man's mouth are gracious; but a fool is swallowed by his own lips.
James 3:6-8
And the tongue is a fire. The world of iniquity among our members is the tongue, which defiles the whole body, and sets on fire the course of nature, and is set on fire by hell.