Sirach 28:13

13 Curse the whisperer and doubletongued: for such have destroyed many that were at peace.

Sirach 28:13 In-Context

11 An hasty contention kindleth a fire: and an hasty fighting sheddeth blood.

12 If thou blow the spark, it shall burn: if thou spit upon it, it shall be quenched: and both these come out of thy mouth.

13 Curse the whisperer and doubletongued: for such have destroyed many that were at peace.

14 A backbiting tongue hath disquieted many, and driven them from nation to nation: strong cities hath it pulled down, and overthrown the houses of great men.

15 A backbiting tongue hath cast out virtuous women, and deprived them of their labours.