Jeremiah 4:14
O Jerusalem, wash thine heart from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?
James 4:8
Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners; and purify your hearts, ye double minded.
Proverbs 1:22
How long, ye simple ones, will ye love simplicity? and the scorners delight in their scorning, and fools hate knowledge?
Jeremiah 13:27
I have seen thine adulteries, and thy neighings, the lewdness of thy whoredom, and thine abominations on the hills in the fields. Woe unto thee, O Jerusalem! wilt thou not be made clean? when shall it once be?
Psalm 66:18
If I regard iniquity in my heart, the Lord will not hear me:
Psalm 119:113
SAMECH. I hate vain thoughts: but thy law do I love.
Isaiah 1:16-19
Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;
Isaiah 55:7
Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the LORD, and he will have mercy upon him; and to our God, for he will abundantly pardon.
Ezekiel 18:31
Cast away from you all your transgressions, whereby ye have transgressed; and make you a new heart and a new spirit: for why will ye die, O house of Israel?
Matthew 12:33
Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.
Matthew 15:19-20
For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies:
Matthew 23:26-27
Thou blind Pharisee, cleanse first that which is within the cup and platter, that the outside of them may be clean also.
Luke 11:39
And the Lord said unto him, Now do ye Pharisees make clean the outside of the cup and the platter; but your inward part is full of ravening and wickedness.
Acts 8:22
Repent therefore of this thy wickedness, and pray God, if perhaps the thought of thine heart may be forgiven thee.
Romans 1:21
Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
1 Corinthians 3:20
And again, The Lord knoweth the thoughts of the wise, that they are vain.