John 4:47-53 KJV
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.
Then said Jesus unto him, Except ye see signs and wonders, ye will not believe.
The nobleman saith unto him, Sir, come down ere my child die.
Jesus saith unto him, Go thy way; thy son liveth. And the man believed the word that Jesus had spoken unto him, and he went his way.
And as he was now going down, his servants met him, and told him, saying, Thy son liveth.
Then enquired he of them the hour when he began to amend. And they said unto him, Yesterday at the seventh hour the fever left him.
So the father knew that it was at the same hour, in the which Jesus said unto him, Thy son liveth: and himself believed, and his whole house.