Psalm 58:4
"Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear;"
Cross References (ranked by relevance)
They have sharpened their tongues like a serpent; adders’ poison is under their lips. Selah.
But the tongue can no man tame; it is an unruly evil, full of deadly poison.
Surely the serpent will bite without enchantment; and a babbler is no better.
Ye serpents, ye generation of vipers, how can ye escape the damnation of hell?
Their wine is the poison of dragons, and the cruel venom of asps.
And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice’ den.
But when he saw many of the Pharisees and Sadducees come to his baptism, he said unto them, O generation of vipers, who hath warned you to flee from the wrath to come?
For, behold, I will send serpents, cockatrices, among you, which will not be charmed, and they shall bite you, saith the LORD.
Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips:
He shall suck the poison of asps: the viper’s tongue shall slay him.
Yet his meat in his bowels is turned, it is the gall of asps within him.