Hello again
@Apple Sky, there is a pretty solid consensus that the
beloved disciple, who is mentioned several times in the Gospel of John (but nowhere else in the Bible), is actually the Apostle John, not Nathaneal (take special note below of what John says in
John 21:24).
~
Who was the disciple whom Jesus loved? | GotQuestions.org
As far as what the Lord meant by...................
John 21
20 Peter, turning around, saw the disciple whom Jesus loved following them; the one who also had leaned back on His bosom at the supper and said, “Lord, who is the one who betrays You?”
21 So Peter seeing him said to Jesus, “Lord, and what about this man?”
22 Jesus said to him, “If I want him to remain until I come, what is that to you? You follow Me!”
23 Therefore this saying went out among the brethren that that disciple would not die; yet Jesus did not say to him that he would not die, but only, “If I want him to remain until I come, what is that to you?”
24 This is the disciple who is testifying to these things and ~wrote these things~, and we know that his testimony is true.
.....................I believe that the Lord says what He does to Peter in v22 to get his concern and focus back to where it needed to be, on the Lord, and on the extraordinarily important tasks and mission that He gave him to fulfill (e.g.
John 21:15-17).
I also believe that Peter's question (v21) about John, the
beloved disciple, was most likely in response to what the Lord had just said to him (in
John 21:18-19) about his (Peter's) own future and death.
God bless you!!
--David
p.s. - here's an excerpt from one of my commentaries on
John 21:22 (though all of my commentaries basically say the same, just FYI).
22. Jesus said to him, If I will that he remain until I come, what is that to you? You follow me!
By means of these words the Lord impresses upon Peter’s mind the fact that curiosity about John’s future must make way for obedience to the Lord’s all-important command, “Follow me … Feed my lambs … Shepherd my sheep … Feed my dear sheep.” Peter must not be so deeply interested in God’s secret counsel (regarding John) that he fails to pay attention to God’s revealed will!
It is a lesson which every believer in every age should take to heart.
There is work to be done. There are souls to be reached. There is a task to be accomplished. Let Peter rivet all his attention upon this! ~Hendriksen, W., & Kistemaker, S. J. (1953–2001). Exposition of the Gospel According to John (Vol. 2, p. 491). Baker Book House.