Proverbs 19:26-28

The Voice

²⁶ Children who mistreat their father and run down their mother
    are a root of shame and disgrace.
²⁷ My child, should you stop listening to instruction,
    you will wander from the voice of knowledge.
²⁸ A worthless witness ridicules justice,
    and the mouth of the wrongdoer savors every morsel of trouble.