Psalm 31:18

Let their lying lips be silenced, for with pride and contempt they speak arrogantly against the righteous.

Let their lying lips be silenced 
Psalm 120:2  Save me, LORD, from lying lips and deceitful tongues.
Proverbs 10:18  Whoever conceals hatred with lying lips and spreads slander is a fool.
Proverbs 26:24-26  Enemies disguise themselves with their lips, but in their hearts they harbor deceit. Though their speech is charming, do not believe them, for seven abominations fill their hearts. Their malice may be concealed by deception, but their wickedness will be exposed in the assembly.

for with pride and contempt they speak arrogantly against the righteous 
1 Samuel 2:3  "Do not keep talking so proudly or let your mouth speak such arrogance, for the LORD is a God who knows, and by him deeds are weighed."
Jude 14-16  Enoch, the seventh from Adam, prophesied about them: "See, the Lord is coming with thousands upon thousands of his holy ones to judge everyone, and to convict all of them of all the ungodly acts they have committed in their ungodliness, and of all the defiant words ungodly sinners have spoken against him. These people are grumblers and faultfinders; they follow their own evil desires; they boast about themselves and flatter others for their own advantage."

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
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