You brood of vipers, how can you who are evil say anything good? For out of the overflow of the heart the mouth speaks.
NIV
You offspring of vipers! How can you speak good things when you are evil (wicked)? For out of the fullness (the overflow, the superabundance) of the heart the mouth speaks.
AMP
O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
KJV
But when he saw many of the Pharisees and Sadducees coming to where he was baptizing, he said to them: "You brood of vipers! Who warned you to flee from the coming wrath?"
NIV
But when he saw many of the Pharisees and Sadducees coming for baptism, he said to them, You brood of vipers! Who warned you to flee and escape from the wrath and indignation [of God against disobedience] that is coming?
AMP
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?
KJV
"Their throats are open graves; their tongues practice deceit." "The poison of vipers is on their lips."
NIV
Their throat is a yawning grave; they use their tongues to deceive (to mislead and to deal treacherously). The venom of asps is beneath their lips. [Ps. 5:9; 140:3.]AMP
Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips:
KJV
I will send wasting famine against them, consuming pestilence and deadly plague; I will send against them the fangs of wild beasts, the venom of vipers that glide in the dust.
NIV
They shall be wasted with hunger and devoured with burning heat and poisonous pestilence; and the teeth of beasts will I send against them, with the poison of crawling things of the dust.
AMP
They shall be burnt with hunger, and devoured with burning heat, and with bitter destruction: I will also send the teeth of beasts upon them, with the poison of serpents of the dust.
KJV
They hatch the eggs of vipers and spin a spider's web. Whoever eats their eggs will die, and when one is broken, an adder is hatched.
NIV
They hatch adders' eggs and weave the spider's web; he who eats of their eggs dies, and [from an egg] which is crushed a viper breaks out [for their nature is ruinous, deadly, evil].
AMP
They hatch cockatrice' eggs, and weave the spider's web: he that eateth of their eggs dieth, and that which is crushed breaketh out into a viper.
KJV