Jeremiah 4:14
Wash thy heart, Jerusalem, from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?
James 4:8
Draw near to God, and he will draw near to you. Cleanse your hands, sinners, and purify your hearts, ye double-minded.
Proverbs 1:22
How long, simple ones, will ye love simpleness, and scorners take pleasure in their scorning, and the foolish hate knowledge?
Jeremiah 13:27
Thine adulteries, and thy neighings, the lewdness of thy fornication, on the hills, in the fields, thine abominations, have I seen. Woe unto thee, Jerusalem! Wilt thou not be made clean? after how long a time yet?
Psalm 66:18
Had I regarded iniquity in my heart, the Lord would not hear.
Psalm 119:113
SAMECH. The double-minded have I hated; 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 Jehovah, 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 wherewith ye have transgressed, and make you a new heart and a new spirit: why then will ye die, house of Israel?
Matthew 12:33
Either make the tree good, and its fruit good; or make the tree corrupt, and its fruit corrupt. For from the fruit the tree is known.
Matthew 15:19-20
For out of the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false witnessings, blasphemies;
Matthew 23:26-27
Blind Pharisee, make clean first the inside of the cup and of the dish, that their outside also may become clean.
Luke 11:39
But the Lord said to him, Now do ye Pharisees cleanse the outside of the cup and of the dish, but your inward parts are full of plunder and wickedness.
Acts 8:22
Repent therefore of this thy wickedness, and supplicate the Lord, if indeed the thought of thy heart may be forgiven thee;
Romans 1:21
Because, knowing God, they glorified him not as God, neither were thankful; but fell into folly in their thoughts, and their heart without understanding was darkened:
1 Corinthians 3:20
And again, The Lord knows the reasonings of the wise that they are vain.