Psalm 55:11
"Wickedness is in the midst thereof: deceit and guile depart not from her streets."
Cross References (ranked by relevance)
Psalm 5:9
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.
Isaiah 59:7
Their feet run to evil, and they make haste to shed innocent blood: their thoughts are thoughts of iniquity; wasting and destruction are in their paths.
Psalm 10:7
His mouth is full of cursing and deceit and fraud: under his tongue is mischief and vanity.
Matthew 26:4
And consulted that they might take Jesus by subtilty, and kill him.