Psalm 31:18 in the King James Version
Let the lying lips be put to silence; which speak grievous things proudly and contemptuously against the righteous.
Context
17 Let me not be disappointed, LORD, for I have called on you. Let the wicked be disappointed. Let them be silent in Sheol.
18 Let the lying lips be mute, which speak against the righteous insolently, with pride and contempt.
19 Oh how great is your goodness, which you have laid up for those who fear you, which you have worked for those who take refuge in you, before the sons of men!