Internal and external evidence for the Authorship of John

1.Describe some of the seven.
The internal evidence revolves around the beloved disciple. The context in which the term “beloved disciple” is used, leave mainly one disciple as the option, which is John. It does however not rule out the presence of someone else at the event that was not a part of the original twelve. The external evidence is reliant on many of the early church fathers and other authors who assume it was John that wrote the Gospel. Through tradition is appeared that it was passed down that he was the author and was to many of the fathers, fact. Others used logic to deduce that John was the author, going from the author was a jew, to eyewitness, to apostle, and concluding at because of those and a couple of others the author has to be John. Also similarities between the Gospel of John and the Revelation( which is also attributed to John), point to John being the Author.
2.Why seven signs?
One of John's main target audiences was the Jews. In the Jewish culture there was a big emphasis on the number seven. John chooses these seven miracles so that his reader may believe. It is clear that a Jewish reader would understand that John was signify the completeness of the ministry of Jesus through these seven signs. Seven being the number that represented complete or perfect not lacking anything. To John, a Jew himself, it isn't that he is lacking in of the other miracles it is that he has the perfect amount. The signs wee re meant to point from a non-perfect world to a perfect heaven. The point isn't to astound the reader with something that outside of the realm of humanity but to show the reader something that occurs in the reality of God. The seven signs also occur in the first half of the book, with maybe the intent of John being, to establish Christ as the perfect servant of God, before the story of the cross is even told. All seven signs point to the crucifixion, especially the last one being Lazarus being raised from the dead.