Genesis 6:5

Ecclesiastes 9:3 NIV
This is the evil in everything that happens under the sun: The same destiny overtakes all. The hearts of people, moreover, are full of evil and there is madness in their hearts while they live, and afterward they join the dead.

Ephesians 2:1-3 NIV
As for you, you were dead in your transgressions and sins, in which you used to live when you followed the ways of this world and of the ruler of the kingdom of the air, the spirit who is now at work in those who are disobedient. All of us also lived among them at one time, gratifying the cravings of our flesh and following its desires and thoughts. Like the rest, we were by nature deserving of wrath.

Genesis 8:21 NIV
The Lord smelled the pleasing aroma and said in his heart: “Never again will I curse the ground because of humans, even though every inclination of the human heart is evil from childhood. And never again will I destroy all living creatures, as I have done.

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

Jeremiah 4:14 NIV
Jerusalem, wash the evil from your heart and be saved. How long will you harbor wicked thoughts?

Mark 7:21-23 NIV
For it is from within, out of a person’s heart, that evil thoughts come—sexual immorality, theft, murder, adultery, greed, malice, deceit, lewdness, envy, slander, arrogance and folly. All these evils come from inside and defile a person.”

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

Romans 1:28-31 NIV
Furthermore, just as they did not think it worthwhile to retain the knowledge of God, so God gave them over to a depraved mind, so that they 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 ways of doing evil; they disobey their parents; they have no understanding, no fidelity, no love, no mercy.