James 4:8
Draw near to God and he will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded.
Matthew 12:33
"Either make the tree good, and its fruit good; or make the tree bad, and its fruit bad; for a tree is known by its fruit.
Matthew 15:19-20
For out of the heart come evil thoughts, murder, adultery, fornications, theft, false witness, slander.
Matthew 23:26-27
Blind Pharisee! First cleanse the inside of the cup and dish, that the outside of them may be clean also.
Luke 11:39
But the Lord said to him, "Now you Pharisees clean the outside of the cup and dish, but inside you are full of greed and wickedness.
Acts 8:22
Repent therefore of this wickedness of yours, and pray to the Lord that, if possible, the intent of your heart may be forgiven you.
Romans 1:21
for although they knew God they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened.
1 Corinthians 3:20
and again, "The Lord knows the thoughts of the wise, that they are futile."