Proverbs 6:12
A man of Belial, a wicked person, is he that goeth about with a perverse mouth;
Proverbs 4:24
Put away from thee perverseness of mouth, and corrupt lips put far from thee.
1 Samuel 17:28
And Eliab, his eldest brother, heard while he spoke to the men; and Eliab's anger was kindled against David, and he said, Why art thou come down? and with whom hast thou left those few sheep in the wilderness? I know thy pride and the naughtiness of thy heart; for thou art come down that thou mightest see the battle.
Psalm 10:3
For the wicked boasteth of his soul's desire, and he blesseth the covetous; he contemneth Jehovah.
Psalm 10:7
His mouth is full of cursing, and deceit, and oppression; under his tongue is mischief and iniquity.
Psalm 36:3
The words of his mouth are wickedness and deceit: he hath left off to be wise, to do good.
Psalm 52:2-4
Thy tongue deviseth mischievous things, like a sharp razor, practising deceit.
Psalm 59:7
Behold, they belch out with their mouth; swords are in their lips: for who say they doth hear?
Psalm 73:8-9
They mock and speak wickedly of oppression, they speak loftily:
Proverbs 2:12
To deliver thee from the way of evil, from the man that speaketh froward things;
Proverbs 6:14
deceits are in his heart; he deviseth mischief at all times, he soweth discords.
Proverbs 8:13
The fear of Jehovah is to hate evil; pride, and arrogancy, and the evil way, and the froward mouth do I hate.
Proverbs 11:6
The righteousness of the upright delivereth them; but the treacherous are taken in their own craving.
Proverbs 16:27
A man of Belial diggeth up evil, and on his lips there is as a scorching fire.
Proverbs 17:4
The evil-doer giveth heed to iniquitous lips; the liar giveth ear to a mischievous tongue.
Jeremiah 24:2
One basket had very good figs, like the figs first ripe; and the other basket had very bad figs, which could not be eaten for badness.
Jeremiah 24:8-10
And as the bad figs, which cannot be eaten for badness, surely, thus saith Jehovah: So will I make Zedekiah the king of Judah, and his princes, and the remnant of Jerusalem, that remain in this land, and them that dwell in the land of Egypt.
Matthew 12:34
Offspring of vipers! how can ye speak good things, being wicked? For of the abundance of the heart the mouth speaks.
Acts 20:30
and from among your own selves shall rise up men speaking perverted things to draw away the disciples after them.
1 Timothy 5:13
And, at the same time, they learn also to be idle, going about to people's houses; and not only idle, but also gossipers and meddlers, speaking things not becoming.
Titus 1:10-11
For there are many and disorderly vain speakers and deceivers of people's minds, specially those of the circumcision,
James 1:21
Wherefore, laying aside all filthiness and abounding of wickedness, accept with meekness the implanted word, which is able to save your souls.
James 3:6
and the tongue is fire, the world of unrighteousness; the tongue is set in our members, the defiler of the whole body, and which sets fire to the course of nature, and is set on fire of hell.