Matthew 23:26
Blind Pharisee, make clean first the inside of the cup and of the dish, that their outside also may become clean.
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.
Jeremiah 4:14
Wash thy heart, Jerusalem, from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?
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?
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.
Luke 6:45
The good man, out of the good treasure of his heart, brings forth good; and the wicked man out of the wicked, brings forth what is wicked: for out of the abundance of the heart his mouth speaks.
2 Corinthians 7:1
Having therefore these promises, beloved, let us purify ourselves from every pollution of flesh and spirit, perfecting holiness in God's fear.
Hebrews 10:22
let us approach with a true heart, in full assurance of faith, sprinkled as to our hearts from a wicked conscience, and washed as to our body with pure water.
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.