James 3:14-16
But if you harbor bitter jealousy and selfish ambition in your hearts, do not boast in it or deny the truth. / Such wisdom does not come from above, but is earthly, unspiritual, demonic. / For where jealousy and selfish ambition exist, there will be disorder and every evil practice.

Romans 16:17-18
Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them. / For such people are not serving our Lord Christ, but their own appetites. By smooth talk and flattery they deceive the hearts of the naive.

Matthew 15:19
For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander.

Jeremiah 9:8
Their tongues are deadly arrows; they speak deception. With his mouth a man speaks peace to his neighbor, but in his heart he sets a trap for him.

Psalm 36:3-4
The words of his mouth are wicked and deceitful; he has ceased to be wise and well-doing. / Even on his bed he plots wickedness; he sets himself on a path that is not good; he fails to reject evil.

Isaiah 59:3-4
For your hands are stained with blood, and your fingers with iniquity; your lips have spoken lies, and your tongue mutters injustice. / No one calls for justice; no one pleads his case honestly. They rely on empty pleas; they tell lies; they conceive mischief and give birth to iniquity.

Micah 2:1
Woe to those who devise iniquity and plot evil on their beds! At morning’s light they accomplish it because the power is in their hands.

2 Corinthians 11:13-15
For such men are false apostles, deceitful workers, masquerading as apostles of Christ. / And no wonder, for Satan himself masquerades as an angel of light. / It is not surprising, then, if his servants masquerade as servants of righteousness. Their end will correspond to their actions.

Galatians 5:19-21
The acts of the flesh are obvious: sexual immorality, impurity, and debauchery; / idolatry and sorcery; hatred, discord, jealousy, and rage; rivalries, divisions, factions, / and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who practice such things will not inherit the kingdom of God.

Psalm 10:7
His mouth is full of cursing, deceit, and violence; trouble and malice are under his tongue.

Isaiah 32:6-7
For a fool speaks foolishness; his mind plots iniquity. He practices ungodliness and speaks falsely about the LORD; he leaves the hungry empty and deprives the thirsty of drink. / The weapons of the scoundrel are destructive; he hatches plots to destroy the poor with lies, even when the plea of the needy is just.

1 Timothy 6:3-5
If anyone teaches another doctrine and disagrees with the sound words of our Lord Jesus Christ and with godly teaching, / he is conceited and understands nothing. Instead, he has an unhealthy interest in controversies and disputes about words, out of which come envy, strife, abusive talk, evil suspicions, / and constant friction between men of depraved mind who are devoid of the truth. These men regard godliness as a means of gain.

Psalm 28:3
Do not drag me away with the wicked, and with the workers of iniquity, who speak peace to their neighbors while malice is in their hearts.

Ezekiel 11:2
And the LORD said to me, “Son of man, these are the men who plot evil and give wicked counsel in this city.

2 Peter 2:1-3
Now there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the Master who bought them—bringing swift destruction on themselves. / Many will follow in their depravity, and because of them the way of truth will be defamed. / In their greed, these false teachers will exploit you with deceptive words. The longstanding verdict against them remains in force, and their destruction does not sleep.