Whoever curses father or mother shall be put to death.
All who curse father or mother shall be put to death; having cursed father or mother, their blood is upon them.
Matthew 15:4-7 New International Version (NIV)
4 For God said, ‘Honor your father and mother’[a] and ‘Anyone who curses their father or mother is to be put to death.’[b] 5 But you say that if anyone declares that what might have been used to help their father or mother is ‘devoted to God,’6 they are not to ‘honor their father or mother’ with it. Thus you nullify the word of God for the sake of your tradition. 7 You hypocrites! Isaiah was right when he prophesied about you: