Matthew 12:32-34 Catholic Public Domain Version (CPDV)

32. And anyone who will have spoken a word against the Son of man shall be forgiven. But whoever will have spoken against the Holy Spirit shall not be forgiven, neither in this age, nor in the future age.

33. Either make the tree good and its fruit good, or make the tree evil and its fruit evil. For certainly a tree is known by its fruit.

34. Progeny of vipers, how are you able to speak good things while you are evil? For out of the abundance of the heart, the mouth speaks.

Matthew 12