He said therefore to the multitudes who went out to be baptized by him, "You offspring of vipers, who warned you to flee from the wrath to come?

 3:19-20 So then, urging the people with many other pleas, John preached the gospel to them. But, when Herod the tetrarch was rebuked by him concerning the matter of Herodias, his brother's wife, and concerning all the other wicked things he had done, he added this also to them all--he shut up John in prison. 