Psalm 5:9 in the King James Version
For there is no faithfulness in their mouth; their inward part is very wickedness; their throat is an open sepulchre; they flatter with their tongue.
Context
8 Lead me, LORD, in your righteousness because of my enemies. Make your way straight before my face.
9 For there is no faithfulness in their mouth. Their heart is destruction. Their throat is an open tomb. They flatter with their tongue.
10 Hold them guilty, God. Let them fall by their own counsels. Thrust them out in the multitude of their transgressions, for they have rebelled against you.