Proverbs 20:15-18

15Gold there is, and rubies in abundance, but lips that speak knowledge are a rare jewel.

16Take the garment of one who puts up security for a stranger; hold it in pledge if it is done for an outsider.

17Food gained by fraud tastes sweet, but one ends up with a mouth full of gravel.

18Plans are established by seeking advice; so if you wage war, obtain guidance.