Charles Ellicott Commentary John 4:48

"Jesus therefore said unto him, Except ye see signs and wonders, ye will in no wise believe." — John 4:48 (ASV)

Signs and wonders.—See Note on John 2:11. The words are here addressed to Jews, for there is no reason to think that the nobleman himself was not one. They are spoken to him, but the you extends them to others standing near and to the class of persons whom he represents.

It had been so with the Jews in Jerusalem (John 2:18; John 2:23), and it was so with the Jews in Galilee. (Compare to 1 Corinthians 1:22.)

How different from this faith, which demanded a miracle, and therefore was not faith, but sight, was the acceptance by the Samaritans without a miracle, who believed for the woman’s word, and more fully when they heard the word of Christ Himself.

You will not believe.—The negative is in its strongest form, You will by no means believe.