Third John - Revelation

Third John is written to request a visit while Revelation is a visit that requests to be written.

Visit

A visit is the closing request in Third John. In Revelation Jesus visits.

65 Third John :13-14
13I had many things to write, but I do not want to write them to you with pen and ink;
14however, I trust I will see you shortly, and we will speak face to face.

66 Revelation 1:12-15
65 12And I turned to see the voice that spoke to me. And as I turned, I saw 7 golden candlesticks,
13and in the middle of the 7 candlesticks one resembling the son of man, wearing a long vestment and girded round his breast with a golden belt.
14His head and his hair were white as wool, as white as snow; and his eyes were as a flame of fire;
15and his feet were like the fine brass of Lebanon, as though they were burned in a furnace; and his voice was as the sound of many waters.

There's an interesting effect happening between Third John and Revelation when the characters of the stories are considered. Third John is likely written by the disciple John, or someone using John as their pen name. The text does not identify John directly, but the name of the book suggests John is writing. John identifies himself as the author of Revelation directly. So John writes his friend in Third John to say he really wants to come visit, but John is the one who gets a visit, and that from Jesus, in Revelation.

Some things require a visit to solve, especially things like disputes between people. This is a big part of what the elder begins to discuss in Third John and plans to deal with when he visits in person. So the book is cut short because it might actually become gossip to write about what's going on and the matter cannot easily be solved by writting anyway. In contrast, Revelation is a visit from Jesus that is experienced in private, but ultimately needs to be written so everyone else can read about it. Jesus comes to John, but he is supposed to write what Jesus says and shows him and send it to the seven churches.