StanJ said:
I find it amazing that you can quote scripture but not really understand what it says. It says twice in John 11 the Jesus loved Lazarus. It doesn't say anywhere in John or any of the other gospels the Jesus loved John, so exactly how do you figure out that John the Apostle is who is being referred to in John 21:20-24, when Lazarus was the only disciple ever referred to as the disciple Jesus loved?
Some, for instance, have suggested Lazarus, on the grounds that ‘beloved disciple’ would be an appropriate form of self-reference for one of whom it is elsewhere said that Jesus loved him (11:5, 36). Others have suggested the rich young man of Mark 10:21, on much the same ground. Still others argue for the owner of the upper room, arguing that the reason he could lay his head on Jesus’ breast was that, as the host, he was placed in a position of honour next to Jesus; perhaps he was John Mark. None of this is convincing, and all of it notoriously speculative. According to the Synoptic evidence, only the Twelve were present at the last supper with Jesus: that alone rules out all three suggestions. There is nothing to be said for the first two, other than that Jesus loved them; but that is surely an insufficient ground for identifying the beloved disciple, presupposing as it does that the circle of those whom Jesus loved was extremely limited.
D.A. Carson. Pillar New Testament Commentary
(concerning authorship and identifying the beloved disciple)
Irenaeus, Against Heresies 3.1.1, says: “John the disciple of the Lord, who also leaned upon his breast, did himself publish a Gospel during his residence at Ephesus in Asia.”
Ephrem the Syrian, in an appendix to his commentary on the Diatessaron (cf. ZNW 3 [1902]: 193), writes: “John wrote that Gospel in Greek at Antioch, for he remained in the country until the time of Trajan.”
Not only Irenaeus, but Clement of Alexandria and Tertullian as well, provide firm second-century evidence for the belief that the apostle John wrote the Gospel. According to Eusebius (H.E. VI. xiv. 7), Clement wrote: ‘But that John, last of all, conscious that the outward facts had been set forth in the Gospels, was urged on by his disciples, and, divinely moved by the Spirit, composed a spiritual Gospel.’