Was Jesus Just a Good Teacher? Why Your Answer Changes Everything

Meta Description: What did John—Jesus' own cousin—have to say about who Jesus really was? The answer is more compelling than you might think. URL Slug: was-jesus-just-a-good-teacher Featured Image: An open, well-worn Bible resting on a wooden surface with soft natural light, suggesting study, depth, and discovery — ideally with the pages slightly fanned to convey a library of wisdom.

There's a question that sounds polite and open-minded on the surface, but it actually contains a hidden problem: "Can't Jesus just be a great moral teacher without being God?" This past Sunday, I shared why that question — as reasonable as it sounds — simply doesn't hold up. And the answer comes from someone who was uniquely qualified to settle it once and for all.

The Bible Is a Library — and It Matters Who Wrote What

We've been working our way slowly through the book of 1 John, and I'll be honest: the passage we landed on this week is one that most pastors would skip. It's strange. It's unusual. But that's exactly why I love preaching through entire books of the Bible — you don't get to avoid the hard ones.

Before we could understand the passage, we needed to do a little Bible detective work. Here's where we started: the Bible isn't a single book. It's a library — 66 books written by dozens of different people over thousands of years. The New Testament alone contains 27 books, and 21 of them are letters written by early Christians to other early Christians, trying to figure out how to follow Jesus and build the church. They weren't writing to impress us 2,000 years later. They were writing because they had real questions and needed real answers.

First John was written by John — the same John who wrote the Gospel of John, 2 John, 3 John, and Revelation. That's five books of the New Testament from a single writer. So who was he?

The Man Who Knew Jesus Better Than Anyone

John was one of Jesus' twelve disciples. More than that, he was part of the inner three — Peter, James, and John — who were present at the most significant moments of Jesus' ministry. He was almost certainly the youngest of the disciples. He was the only one who didn't abandon Jesus at the cross.

And here's what I found fascinating in my research this week: John was almost certainly Jesus' first cousin.

When you compare the accounts of the crucifixion across Matthew, Mark, and John's own gospel, three different writers describe the same woman at the foot of the cross in three different ways. Matthew calls her "the mother of Zebedee's sons." Mark names her "Salome." John calls her "his mother's sister." Put those three descriptions together and you get one person — a woman named Salome, John's mother, who was Mary's sister. That makes John and Jesus first cousins.

So when John writes about Jesus, he's not writing as a distant historian. He played with Jesus as a child. He walked with him for three years of ministry. He stood at the foot of the cross. And when Jesus was dying, he looked down and entrusted his own mother to John's care. John came to the cross with one mother and left with two.

I want to hear what that man has to say about Jesus. Don't you?

What the Passage Is Actually Saying

First John was written late — probably in the 90s AD, about 60 years after the resurrection. By then, Christianity had spread far beyond its Jewish roots. Thousands of people were coming to faith out of Greek and Roman culture, bringing with them a whole different set of assumptions about reality.

One of the dominant philosophies of the day was Gnosticism — the belief that the spirit and the physical world were completely separate, and that anything material was at best neutral, at worst evil. For Gnostics, the idea of God actually becoming human flesh was unthinkable. So some of them tried to solve the problem by arguing that Jesus was born as an ordinary man and became divine at his baptism.

That's the false teaching John is pushing back against in 1 John 5:6-8:

"This is the one who came by water and blood — Jesus Christ. He did not come by water only, but by water and blood. And it is the Spirit who testifies, because the Spirit is truth. For there are three that testify: the Spirit, the water, and the blood; and the three are in agreement."

John is saying: Jesus didn't become God at his baptism. He was God from the very beginning — born in flesh, died in blood, confirmed by the Spirit. His deity wasn't acquired. It was eternal.

John says it even more plainly in the opening of his Gospel:

"In the beginning was the Word, and the Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made." (John 1:1-3)

Why This Still Matters Today

You might be thinking — okay, that's interesting ancient history, but why does it matter to me in the 21st century? Here's why: the arguments haven't changed. They've just updated their vocabulary.

Today you'll hear people say things like, "Jesus had a Christ consciousness," or "the divine spark that was in Jesus is in all of us," or "Jesus was a great spiritual teacher among many." These ideas sound modern and sophisticated, but they're actually ancient paganism dressed in new clothes. And John's answer is the same now as it was then.

C.S. Lewis put it perfectly in Mere Christianity:

"The really foolish thing that people often say about Jesus is, 'I'm ready to accept Jesus as a great moral teacher, but I don't accept his claim to be God.' That is the one thing we must not say. A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would either be a lunatic — on the level with the man who says he's a poached egg — or else he would be the devil of hell. You must make your choice."

Jesus left us no comfortable middle ground. He is either Lord, liar, or lunatic. And John — the cousin, the disciple, the man who stood at the cross and took in Jesus' mother — looked the whole world in the eye and said: He is Lord.

The Gospel Is News, Not Just an Idea

Here's how 1 John 5:11-12 wraps it up:

"And this is the testimony: God has given us eternal life, and this life is in his Son. Whoever has the Son has life; whoever does not have the Son of God does not have life."

The gospel isn't a philosophy. It isn't a lifestyle. It isn't even a good idea. The word gospel literally means good news — and news is the retelling of things that actually happened. God made us. We broke our relationship with him through sin. We couldn't fix it on our own. So God himself came — in the person of Jesus of Nazareth — paid the penalty for our sin on the cross, and rose from the dead to prove and promise that we, through him, can have eternal life.

That story only works if Jesus is who John says he is. A wise teacher can't save you. A man who became a god can't restore you to the God who created you. Only the preexistent, all-creating, fully divine Jesus can do that.

And the extraordinary good news is — he already has.

If you weren't with us Sunday, I'd love for you to watch the full message. And if this raises questions for you — good ones, hard ones — bring them. That's exactly what we're here for.

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