John 4:51
And as he was now going down, his servants met him, and told him, saying, Thy son liveth.
Cross-references
John 4:50
Citation
In John 4:50, Jesus spoke the word 'Your son lives' which the servants now report back — a direct citation of the promise.
John 4:53
Parallel
In John 4:53, the father realizes the healing occurred at the hour Jesus spoke — connecting the news in 4:51 to the original word.
1 Kings 17:23
Allusion
In 1 Kings 17:23, Elijah uses the identical phrase 'your son lives' after raising the widow's son — a verbal parallel.