NET
7 So John said to the crowds that came out to be baptized by him, “You offspring of vipers! Who warned you to flee from the coming wrath?
Darby
7 He said therefore to the crowds which went out to be baptised by him, Offspring of vipers, who has forewarned you to flee from the coming wrath?
KJV
7 Then said he to the multitude that came forth to be baptized of him, O generation of vipers, who hath warned you to flee from the wrath to come?