Proverbs 20:17-19

Revised Standard Version

¹⁷ Bread gained by deceit is sweet to a man,
    but afterward his mouth will be full of gravel.
¹⁸ Plans are established by counsel;
    by wise guidance wage war.
¹⁹ He who goes about gossiping reveals secrets;
    therefore do not associate with one who speaks foolishly.