Proverbs 11:9
"An hypocrite with his mouth destroyeth his neighbour: but through knowledge shall the just be delivered."
Cross References (ranked by relevance)
So are the paths of all that forget God; and the hypocrite’s hope shall perish:
Also of your own selves shall men arise, speaking perverse things, to draw away disciples after them.
For it was not an enemy that reproached me; then I could have borne it: neither was it he that hated me that did magnify himself against me; then I would have hid myself from him:
Beware of false prophets, which come to you in sheep’s clothing, but inwardly they are ravening wolves.
That the hypocrite reign not, lest the people be ensnared.
Then the king of Israel gathered the prophets together, about four hundred men, and said unto them, Shall I go against Ramothgilead to battle, or shall I forbear? And they said, Go up; for the LORD shall deliver it into the hand of the king.
But when ye shall see the abomination of desolation, spoken of by Daniel the prophet, standing where it ought not, (let him that readeth understand,) then let them that be in Judaea flee to the mountains: