Psalm 50:19

His mouth is full of cursing and deceit and fraud: under his tongue is mischief and vanity.

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.

But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death.

And they will deceive every one his neighbour, and will not speak the truth: they have taught their tongue to speak lies, and weary themselves to commit iniquity.

The words of his mouth were smoother than butter, but war was in his heart: his words were softer than oil, yet were they drawn swords.

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:

By swearing, and lying, and killing, and stealing, and committing adultery, they break out, and blood toucheth blood.