Proverbs 20:17-21

17Food gained by deceit is sweet to a man, But afterward his mouth will be filled with gravel [just as sin may be sweet at first, but later its consequences bring despair].

18Plans are established by counsel; So make war [only] with wise guidance.

19He who goes about as a gossip reveals secrets; Therefore do not associate with a gossip [who talks freely or flatters].

20Whoever curses his father or his mother, His lamp [of life] will be extinguished in time of darkness.

21An inheritance hastily gained [by greedy, unjust means] at the beginning Will not be blessed in the end.