Proverbs 20:17-21

17Food gained by fraud is sweet to a person, but afterward his mouth is full of gravel.

18Finalize plans with counsel, and wage war with sound guidance.

19The one who reveals secrets is a constant gossip; avoid someone with a big mouth.

20Whoever curses his father or mother — his lamp will go out in deep darkness.

21An inheritance gained prematurely will not be blessed ultimately.