The New John Gill Exposition of the Entire BibleJohn 21:23
Then went this saying abroad among the brethren…
not being rightly understood by some one or more of the disciples
present: it was divulged with a wrong sense annexed to it among
other persons; who, though not of the eleven, yet were followers of
Christ, children of God, that belonged to the same family, and were,
in a spiritual relation, brethren to each other, and to the
that that disciple should not die;
but should remain till the second
coming of Christ, and be found among them that shall be then alive,
and be changed. And such a notion not only was among the ancients;
but Beza, in his notes on this text, tells us of a strolling wicked
fellow, that gave out that he was the Apostle John; and was
encouraged by some, particularly Postellus, a Sorbonic doctor, but
was afterwards burnt at Tholouse.
Yet Jesus said not unto him he shall not die, but if I will that he
tarry till I come, what is that to thee?
These are the words of John
himself, the disciple spoken of, who gives a true and just account
of Christ's words, freeing them from the false sense that was put
upon them; which shows his ingenuous disposition, his integrity and
love of truth; being unwilling that such an error should obtain
among the disciples, and pass in the world for truth.