• Jeremiah 17:9
  " The heart is deceitful above all things,
  And desperately wicked;
  Who can know it?
  
   
• Genesis 6:5-8
  Then the LORD saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually. And the LORD was sorry that He had made man on the earth, and He was grieved in His heart. So the LORD said, 'I will destroy man whom I have created from the face of the earth, both man and beast, creeping thing and birds of the air, for I am sorry that I have made them.' But Noah found grace in the eyes of the LORD.
   
• Matthew 15:18-19
  But those things which proceed out of the mouth come from the heart, and they defile a man. For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies.
   
• Matthew 7:11
  If you then, being evil, know how to give good gifts to your children, how much more will your Father who is in heaven give good things to those who ask Him!
   
• Mark 7:20-23
  And He said, "What comes out of a man, that defiles a man. For from within, out of the heart of men, proceed evil thoughts, adulteries, fornications, murders, thefts, covetousness, wickedness, deceit, lewdness, an evil eye, blasphemy, pride, foolishness. All these evil things come from within and defile a man."
   

Related Scriptures

• Ephesians 2:2
  in which you once walked according to the course of this world, according to the prince of the power of the air, the spirit who now works in the sons of disobedience,
   
• Genesis 1:31
  Then God saw everything that He had made, and indeed it was very good. So the evening and the morning were the sixth day.