“When 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.”
King James Version (KJV)
4:47 To come down - For Cana stood much higher than Capernaum.
Joh 4:47 Besought him that he would . . . heal his son. Note that: (1) The nobleman has already "faith as a grain of mustard seed" (Mt 17:20 Lu 17:6) in Jesus; (2) that faith moves him to seek the aid of Jesus; (3) to make sure of his help he comes in person, instead of sending servants; (4) while he thought he could heal his son, he did not comprehend that it could be done unless Jesus came to where he was; (5) he thought it would be too late if the son died before his coming. His faith way very imperfect.