'Tongue' in the Bible

They bend their tongue, [as it were] their bow, for falsehood; and they are grown strong in the land, but not for truth: for they proceed from evil to evil, and they don't know me, says Yahweh.

They will deceive everyone his neighbor, and will not speak the truth: they have taught their tongue to speak lies; they weary themselves to commit iniquity.

Their tongue is a deadly arrow; it speaks deceit: one speaks peaceably to his neighbor with his mouth, but in his heart he lays wait for him.

Then they said, Come, and let us devise devices against Jeremiah; for the law shall not perish from the priest, nor counsel from the wise, nor the word from the prophet. Come, and let us strike him with the tongue, and let us not give heed to any of his words.