In the case of the book of the Apocalypse, why do you accept it as canon? Luther thought it shouldn’t be included in canon. on what basis do you think that it is canon and on what basis do you think that the John of Patmos is the same as the Apostle John?
I bring you yet another question from Cronos!!
The authorship of the Johannine worksthe Gospel of John, Epistles of John, and the Book of Revelationhas been debated by scholars since at least the 2nd century AD.[1] The main debate centers on who authored the writings, and which of the writings, if any, can be ascribed to a common author.
There may have been a single author for the gospel and the three epistles.[2] Tradition attributes all the books to John the Apostle.[2] Most scholars agree that all three letters are written by the same author, although there is debate on who that author is.[3][4][5] Although some scholars conclude the author of the epistles was different from that of the gospel, all four works probably originated from the same community,[6] traditionally and plausibly attributed to Ephesus, c. 90-110, but perhaps, according to some scholars, from Syria.[7]
Some scholars, however, argue that the apostle John wrote none of these works,[8][9] although others, notably J. A. T. Robinson, F. F. Bruce, Leon Morris, and Martin Hengel[10] hold the apostle to be behind at least some, in particular the gospel.[11][12]
In the case of Revelation, many modern scholars agree that it was written by a separate author, John of Patmos, c. 95 with some parts possibly dating to Nero's reign in the early 60s.[2][13]
https://en.wikipedia.org/wiki/Authorship_of_the_Johannine_works