'Viper's' in the Bible

He shall suck the poison of asps: the viper's tongue shall slay him.

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

And the sucking child shall play on the hole of the adder, and the weaned child shall put forth its hand to the viper's den.

They hatch viper’s eggsand weave spider’s webs.Whoever eats their eggs will die;crack one open, and a viper is hatched.