Thou shalt destroy them that speak leasing (comp. Psalms 4:2). David's adversaries were cunning, treacherous, and quite regardless of truth (see 2 Samuel 3:27; 2 Samuel 13:28; 2 Samuel 15:7-9; 2 Samuel 20:10, etc.
). God's vengeance was sure to fall upon them, either in this world or in the next. The Lord will abhor the bloody and deceitful man. An individual seems to be pointed at, who is probably Ahithophel.