John Lightfoot on John 4:46

[A nobleman.] This nobleman, probably, might be some Herodian, such as we find mentioned, Matthew 22:16; not merely a servant or attendant upon Herod the tetrarch, who reigned at this time, but one devoted to Herod's family, out of principles of conscience and submission. For we have elsewhere shewn the controversy in that nation about the introducing of Herod the Great into the government, and whether there was not a spice of that quarrel in the differences of the Shammeans and the Hillelites, might be a matter worth our inquiry, but not in this place. But suppose this nobleman at present to have been an attendant upon Herod the tetrarch (setting aside that controversy); and then the words of our blessed Saviour, verse 48, "Except ye see signs and wonders, ye will not believe," may have this tendency and design in them: The Jews they required signs, 1 Corinthians 1:22; but Herod's court was especially to be charged with this curiosity, because they had heard John the Baptist, yea, even the tetrarch himself, with some kind of observance and veneration; and yet because John shewed no sign, "did no miracle," John 10:41, he was the easilier thrown into prison and not believed: for the story of his imprisonment immediately follows. Compare that passage with Luke 23:8.