1 Samuel 24:13
There is an old saying, From the evil-doer comes evil: but my hand will never be lifted up against you.
Matthew 7:16-18
By their fruits you will get knowledge of them. Do men get grapes from thorns or figs from thistles?
Matthew 7:20
So by their fruits you will get knowledge of them.
Matthew 12:33-34
Make the tree good, and its fruit good; or make the tree bad, and its fruit bad; for by its fruit you will get knowledge of the tree.
Matthew 15:19
For out of the heart come evil thoughts, the taking of life, broken faith between the married, unclean desires of the flesh, taking of property, false witness, bitter words: