John did not stutterThat's all it could be. Christ didn't die for or come to save any others.
John 4:42 —KJV
“And said unto the woman, Now we believe, not because of thy saying: for we have heard him ourselves, and know that this is indeed the Christ, the Saviour of the world.”
1 John 4:14 —KJV
“¶ And we have seen and do testify that the Father sent the Son to be the Saviour of the world.”