Cross reference
Proverbs 6:12
12 A worthless person, a man of iniquity, Is he who walks with a perverse mouth;
Proverbs 4:24
24 Put away from yourself a perverse mouth. Put corrupt lips far from you.
Proverbs 16:27
27 A worthless man devises mischief. His speech is like a scorching fire.
Proverbs 17:4
4 An evil-doer heeds wicked lips. A liar gives ear to a mischievous tongue.
Matthew 12:34
34 You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
Acts 20:30
30 Men will arise from among your own selves, speaking perverse things, to draw away the disciples after them.
1 Timothy 5:13
13 Besides, they also learn to be idle, going about from house to house. Not only idle, but also gossips and busybodies, saying things which they ought not.
Titus 1:10-11
10 For there are also many unruly men, vain talkers and deceivers, especially those of the circumcision,
11 whose mouths must be stopped; men who overthrow whole houses, teaching things which they ought not, for dishonest gain's sake.
James 3:6
6 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 Gehenna.{Gehenna is a name that describes a burning Hell with rotting bodies and unclean things in it}
Proverbs 11:6
6 The righteousness of the upright shall deliver them, But the unfaithful will be trapped by evil desires.
Proverbs 8:13
13 The fear of Yahweh is to hate evil. I hate pride, arrogance, the evil way, and the perverse mouth.
Proverbs 6:14
14 In whose heart is perverseness, Who devises evil continually, Who always sows discord.
Proverbs 2:12
12 To deliver you from the way of evil, From the men who speak perverse things;
Psalms 10:3
3 For the wicked boasts of his heart's cravings, He blesses the greedy, and condemns Yahweh.
Psalms 10:7
7 His mouth is full of cursing, deceit, and oppression. Under his tongue is mischief and iniquity.
Psalms 36:3
3 The words of his mouth are iniquity and deceit. He has ceased to be wise and to do good.
Psalms 52:2-4
2 Your tongue plots destruction, Like a sharp razor, working deceitfully.
3 You love evil more than good, Lying rather than speaking the truth. Selah.
4 You love all devouring words, You deceitful tongue.
Psalms 59:7
7 Behold, they spew with their mouth. Swords are in their lips, "For," they say, "who hears us?"
Psalms 73:8-9
8 They scoff and speak with malice. In arrogance, they threaten oppression.
9 They have set their mouth in the heavens. Their tongue walks through the earth.
James 1:21
21 Therefore, putting away all filthiness and overflowing of wickedness, receive with humility the implanted word, which is able to save your souls{or, preserve your life.}.
Jeremiah 24:8-10
8 As the bad figs, which can't be eaten, they are so bad, surely thus says Yahweh, So will I give up Zedekiah the king of Judah, and his princes, and the residue of Jerusalem, who remain in this land, and those who dwell in the land of Egypt,
9 I will even give them up to be tossed back and forth among all the kingdoms of the earth for evil; to be a reproach and a proverb, a taunt and a curse, in all places where I shall drive them.
10 I will send the sword, the famine, and the pestilence, among them, until they be consumed from off the land that I gave to them and to their fathers.
Jeremiah 24:2
2 One basket had very good figs, like the figs that are first-ripe; and the other basket had very bad figs, which could not be eaten, they were so bad.
1 Samuel 17:28
28 Eliab his eldest brother heard when he spoke to the men; and Eliab's anger was kindled against David, and he said, Why are you come down? and with whom have you left those few sheep in the wilderness? I know your pride, and the naughtiness of your heart; for you have come down that you might see the battle.