Tehillim 52:1-2

Orthodox Jewish Bible

52 (For the one directing. A maskil of Dovid. When Doeg HaAdomi [the Edomite] went to Sha’ul and said to him, Dovid has gone to Bais Achimelech). Why boastest thou thyself in ra’ah, O gibbor? The chesed El is kol hayom.

^2 (4) The leshon (tongue) deviseth treachery; like a sharp ta’ar (razor), working remiyyah (deceit).