but Herod the tetrarch, being reproved by him for Herodias, his brother's{TR reads "brother Philip's instead of brother's"} wife, and for all the evil things which Herod had done,

 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. 