GOD'S WORD® Translation
They make their tongues as sharp as a snake's [fang]. Their lips hide the venom of poisonous snakes. [Selah]

American Standard Version
They have sharpened their tongue like a serpent; Adders poison is under their lips. Selah

Berean Study Bible
They sharpen their tongues like snakes; the venom of vipers is on their lips. Selah

Douay-Rheims Bible
They have sharpened their tongues like a serpent: the venom of saps is under their lips.

English Revised Version
They have sharpened their tongue like a serpent; adders' poison is under their lips. Selah

King James Bible
They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah.

World English Bible
They have sharpened their tongues like a serpent. Viper's poison is under their lips. Selah.

Young's Literal Translation
They sharpened their tongue as a serpent, Poison of an adder is under their lips. Selah.

Psalm 140:3 Additional Translations ...