For the mouth of the wicked and the mouth of the deceitful - literally, “The mouth of wickedness, and the mouth of deceit.” This acquaints us with the nature of the wrong which had been done him. It was slander; undeserved reproach.
Are opened against me - Margin, “have opened;” that is, have opened themselves.
They have spoken against me with a lying tongue - They have accused me of things which are not true; they have made false charges against me. David, as has not been uncommon with good people, was called repeatedly to this trial.