John answered them all, "I indeed baptize you with water, but he comes who is mightier than I, the latchet of whose sandals I am not worthy to loosen. He will baptize you in the Holy Spirit and fire,

 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. 