Ecclesiasticus 23:14
13. Use not thy mouth to intemperate swearing, for therein is the word of sin.14. Remember thy father and thy mother, when thou sittest among great men. Be not forgetful before them, and so thou by thy custom become a fool, and wish that thou hadst not been born, and curse they day of thy nativity.15. The man that is accustomed to opprobrious words will never be reformed all the days of his life.
Ecclesiasticus თავი 23