John tells us his purpose in recording the signs Jesus did: “And truly Jesus did many other signs in the presence of His disciples, which are not written in this book; but these are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name.” (Jn. 20:30-31)
John is unique among the books of the New Testament in that it contemplates an unbelieving audience. Does that mean that once we believe, we have nothing further to learn from the book? Not at all!
In a modern evangelical setting, we tend to think that John’s evangelistic purpose means it’s a gospel tract – when they believe, John has accomplished what he set out to do. Not quite. John is not a modern evangelical, and this is not some 100-word “Ticket to Heaven” pamphlet.
John intended to succeed, and he had no intention of leaving his new, baby believer readers to their own devices. His gospel is meant to be read, believed, and then re-read as a believer. What happens when they believe? John tells us: “…and that believing, you may have life in His name.”
This “having life” thing — how does it work? Well, John’s already told us that too: this is not something that happens when you die; the life Jesus gives begins now, when you believe (3:36) and continues forever (5:24). If John convinced you before you got to 20:30-31 — which he’s certainly trying to do — then your life has already begun!
Moreover, Jesus has already told us that simply possessing life is not His goal for you: “I am come that they might have life, and that they might have it more abundantly.” And earlier: “He who believes in Me, as the Scriptures have said, out of his belly will flow rivers of living water.”
How does one live abundantly, you ask? Especially now that Jesus is gone?
The Last Discourse to the rescue! In 13:1, John frames the discourse in such a way that it also advances his evangelistic purpose, but let’s not miss what this whole teaching is. Starting in 13:31, Judas has left the room. Jesus is speaking only to believers — the 11 faithful disciples — and He’s teaching them how they will live when He has returned to heaven. As we listen with their ears, we learn how to conduct abundant lives today.
So listen! I just sat down and re-read John 13-17. I’d encourage you to do the same today.
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