John 4:47-49 (King James Version)

 ⁴⁷When he heard that Jesus was come out of Judaea into Galilee, he went unto him, and besought him that he would come down, and heal his son: for he was at the point of death.

 ⁴⁸Then said Jesus unto him, Except ye see signs and wonders, ye will not believe.

 ⁴⁹The nobleman saith unto him, Sir, come down ere my child die.