Authorship:
Tradition has held that the Gospel of John was written by the apostle John.
Internal evidence: the author was an eyewitness of Jesus’s ministry. (1:14) The writer displays a Semitic style of writing. The writer displays a familiarity with Jewish customs (water pouring) and topography (the pool with the five porches). The writer claims to be the “disciple whom Jesus loved”.
Dating:
Many critics claim that the Gospel of John was written in the mid second century. The discovery of the Ryland’s papyrus means that it was written prior to 135 AD. A probable dating of writing would between 90 AD and 110 AD. Although some elements would put it closer to 70 AD.
Purpose:
The author clearly defines the purpose of the Gospel as being “these things have been written so that you may believe”.
Christology:
The Gospel of John shows Jesus as the Son of God. It also reveals the nature and character of Jesus. This is illustrated in the “I am” sayings.
