Jeremiah 17:9
The heart is deceitful above all things and beyond cure. Who can understand it?

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

Mark 7:21-23
For from within the hearts of men come evil thoughts, sexual immorality, theft, murder, adultery, / greed, wickedness, deceit, debauchery, envy, slander, arrogance, and foolishness. / All these evils come from within, and these are what defile a man.”

Genesis 6:5
Then the LORD saw that the wickedness of man was great upon the earth, and that every inclination of the thoughts of his heart was altogether evil all the time.

Romans 1:28-31
Furthermore, since they did not see fit to acknowledge God, He gave them up to a depraved mind, to do what ought not to be done. / They have become filled with every kind of wickedness, evil, greed, and depravity. They are full of envy, murder, strife, deceit, and malice. They are gossips, / slanderers, God-haters, insolent, arrogant, and boastful. They invent new forms of evil; they disobey their parents. ...

Isaiah 59:7
Their feet run to evil; they are swift to shed innocent blood. Their thoughts are sinful thoughts; ruin and destruction lie in their wake.

James 1:14-15
But each one is tempted when by his own evil desires he is lured away and enticed. / Then after desire has conceived, it gives birth to sin; and sin, when it is full-grown, gives birth to death.

Psalm 36:4
Even on his bed he plots wickedness; he sets himself on a path that is not good; he fails to reject evil.

Romans 3:15-18
“Their feet are swift to shed blood; / ruin and misery lie in their wake, / and the way of peace they have not known.” ...

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.

Matthew 5:28
But I tell you that anyone who looks at a woman to lust after her has already committed adultery with her in his heart.

Isaiah 65:2
All day long I have held out My hands to an obstinate people who walk in the wrong path, who follow their own imaginations,

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 140:2
who devise evil in their hearts and stir up war all day long.

Ephesians 4:17-19
So I tell you this, and insist on it in the Lord, that you must no longer walk as the Gentiles do, in the futility of their thinking. / They are darkened in their understanding and alienated from the life of God because of the ignorance that is in them due to the hardness of their hearts. / Having lost all sense of shame, they have given themselves over to sensuality for the practice of every kind of impurity, with a craving for more.