Jeremiah 4:14
O Jerusalem, cleanse your heart from evil so that you may be saved. How long shall your vain thoughts lodge within you?
James 4:8
Draw near to God, and He will draw near to you. Cleanse your hands, sinners; and purify your hearts, double-minded ones.
Proverbs 1:22
How long will you love simplicity, simple ones? And will scorners delight in their scorning? And will fools hate knowledge?
Jeremiah 13:27
I have seen your adulteries, and your neighings, the wickedness of your fornication, and your abominations on the hills in the fields. Woe to you, O Jerusalem! Will you not be made clean? How long will it still be?
Psalm 66:18
If I regard iniquity in my heart, Jehovah will not hear;
Psalm 119:113
SAMECH: I hate half-hearted thoughts; but Your Law do I love.
Isaiah 1:16-19
Wash yourselves, make yourselves clean; put away the evil of your doings from before My eyes; cease to do evil;
Isaiah 55:7
Let the wicked forsake his way, and the unrighteous man his thoughts; and let him return to Jehovah, and He will have mercy on him; and to our God, for He will abundantly pardon.
Ezekiel 18:31
Cast away from you all your sins by which you have sinned; and make you a new heart and a new spirit; for why will you die, O house of Israel?
Matthew 12:33
Either make the tree good and its fruit good, or else make the tree corrupt and its fruit corrupt; for the tree is known by its fruit.
Matthew 15:19-20
For out of the heart come evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies;
Matthew 23:26-27
Blind Pharisee! First cleanse the inside of the cup and of the dish, so that the outside of them may be clean also.
Luke 11:39
And the Lord said to him, Now you Pharisees make the outside of the cup and the platter clean, but your inward part is full of plunder and wickedness.
Acts 8:22
Therefore repent of this wickedness of yours, and pray God if perhaps the thought of your heart may be forgiven you.
Romans 1:21
Because, knowing God, they did not glorify Him as God, neither were thankful. But they became vain in their imaginations, and their foolish heart was darkened.
1 Corinthians 3:20
And again, "The Lord knows the thoughts of the wise, that they are vain."