Let the lying lips be put to silence; who speak grievous things proudly and contemptuously against the righteous.
Read Chapter 31
Augustine of Hippo
AD 430
19. "Let the deceitful lips be made dumb" (ver. 18). In making known to the peoples Thy mysteries wrought in me, strike with dumb amazement the lips of them that invent falsehood of me. "Which speak iniquity against the Righteous, in pride and contempt." Which speak iniquity against Christ, in their pride and contempt of Him as a crucified man.
Iniquity. Hebrew, "harsh things "calumnies. (Calmet)
Abuse. Septuagint exoudenosei, as if they "made nothing "of the just. (Haydock)
They seem to acknowledge no superior, and abuse their power. (Worthington)