Proverbs 19:18-20

New Catholic Bible

¹⁸ Chastise your son while there is still hope for him,
    but do not allow your anger to cause his death.
¹⁹ One with a violent temper must bear the consequences;
    if you spare him, you make his evil worse.^[a]
20 Heed advice and accept instruction
    so that your wisdom may increase in the future.