'Venom' in the Bible

Their wine is serpents’ venom,the deadly poison of cobras.

yet the food in his stomach turnsinto cobras’ venom inside him.

They have venom like the venom of a snake,like the deaf cobra that stops up its ears,

They make their tonguesas sharp as a snake’s bite;viper’s venom is under their lips.Selah

Their throat is an open grave;they deceive with their tongues.Vipers’ venom is under their lips.