This is an excellent study on the Gospel of John, examining the actual authorship.
The Authorship of the 4th Gospel: The Disciple Whom Yeshua Loved
Well I wonder, wonder who, who oo oo oo –
Who Wrote the “Book of John”?
By David M Rogers
Published: December 2009
Updated: May 2012, February 2014
Anyone who has been reading the articles and Bible studies on BibleTruth.cc knows that traditional Christian teachings and interpretations are routinely called into question. Our approach to biblical interpretation is to let the Scriptures speak and have authority as the proper way and walk of faith without consideration to the traditions and commandments of men. This requires that we give no weight to man-made traditions which tend to steer people away from the truth. Much of what our fathers were taught and passed down to us is fraught with the errors of misinterpretation and misunderstanding of the culture and context of the writings of Scripture. Our fathers have taught us lies because they were taught lies.
Read the remainder of this article at: The Authorship of the 4th Gospel