James 4:8

Draw near to God, and he will draw near to you. Make your hands clean, you sinners; and your hearts pure, you vacillating men!

Matthew 12:33

You must assume either that both tree and fruit are good, or that both tree and fruit are worthless; since it is by it's fruits that a tree is known.

Matthew 15:19-20

For out of the heart proceed evil thoughts--murder, adultery, unchastity, theft, perjury, slander.

Matthew 23:26-27

You blind Pharisee! First clean the inside of the cup and the dish, so that the outside may become clean as well.

Luke 11:39

But the Master said to him: "You Pharisees do, it is true, clean the outside of the cup and of the plate, but inside you yourselves are filled with greed and wickedness.

Acts 8:22

Therefore repent of this wickedness of yours, and pray to the Lord, that, if possible, you may be forgiven for such a thought;

Romans 1:21

Because, although they learned to know God, yet they did not offer him as God either praise or thanksgiving. Their speculations about him proved futile, and their undiscerning minds were darkened.

1 Corinthians 3:20

And it says again-'The Lord sees how fruitless are the deliberations of the wise.'

Treasury of Scripture Knowledge

Summary

O Jerusalem, wash thine heart from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?

Bible References

Wash

Matthew 12:33
You must assume either that both tree and fruit are good, or that both tree and fruit are worthless; since it is by it's fruits that a tree is known.
Matthew 15:19
For out of the heart proceed evil thoughts--murder, adultery, unchastity, theft, perjury, slander.
Matthew 23:26
You blind Pharisee! First clean the inside of the cup and the dish, so that the outside may become clean as well.
Luke 11:39
But the Master said to him: "You Pharisees do, it is true, clean the outside of the cup and of the plate, but inside you yourselves are filled with greed and wickedness.
James 4:8
Draw near to God, and he will draw near to you. Make your hands clean, you sinners; and your hearts pure, you vacillating men!