Date of the Gospel of John: When was the Gospel of John written? Which of 3 books was written first, Revelation, the Gospel of John or the 3 epistles? Actual Dates of the Gospel of John & Epistles: Do you have any idea what the actual dates those books were written then? I know you think Revelation was written in the 60's. Style Textually The 4 Books were Written: Can't we tell by the style they were written?