Matthew 12:33-37 (New International Version)

 ³³"Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit. ³⁴You brood of vipers, how can you who are evil say anything good? For out of the overflow of the heart the mouth speaks. ³⁵The good man brings good things out of the good stored up in him, and the evil man brings evil things out of the evil stored up in him. ³⁶But I tell you that men will have to give account on the day of judgment for every careless word they have spoken. ³⁷For by your words you will be acquitted, and by your words you will be condemned."