The Christological Test

Today's Scripture

1 John 4:2-3 — "By this you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God, and every spirit that does not confess Jesus is not from God."

John 1:14 — "And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth."

1 Corinthians 12:3 — "Therefore I want you to understand that no one speaking in the Spirit of God ever says 'Jesus is accursed!' and no one can say 'Jesus is Lord' except in the Holy Spirit."

The Big Idea

John's first test is not about feelings, power, or impressiveness. It is a question: what does this spirit say about Jesus? The Holy Spirit always points to the real Jesus — God come in actual human flesh, crucified and risen. A spirit offering you a different Jesus, however dazzling, is not from God.

Reflection

The test no one expects

Yesterday we learned that we are commanded to test the spirits. Today John hands us the first test — and it is not the one most of us would have written.

Ask a roomful of Christians how to tell whether a movement is from God, and you will hear good answers: watch how people treat each other, see if it lasts, check the leader's life. Those tests are real, and they are coming later this week. But John's first test is none of them. 1 John 4:2-3 — "Every spirit that confesses that Jesus Christ has come in the flesh is from God, and every spirit that does not confess Jesus is not from God."

To "confess" means to say something openly, out loud, even when it costs you. So the question John teaches us to ask is blunt: what does this spirit — this teacher, this song, this movement, this inner voice — openly say about Jesus? Not Jesus as a vague idea. Jesus come in the flesh: the baby of Bethlehem, the carpenter of Nazareth, the man who hung on a Roman cross and walked out of a tomb.

Paul worried about exactly this danger. 2 Corinthians 11:4 — "For if someone comes and proclaims another Jesus than the one we proclaimed... you put up with it readily enough." Another Jesus. Same name, different person. Two thousand years later, that is still the most common counterfeit on the market.

Why "in the flesh" matters so much

John was not writing into thin air. Teachers had risen up in his churches — they would later be called Gnostics, from the Greek word for "knowledge" — who loved the idea of a heavenly Christ but gagged on a physical one. A glowing spirit-Christ who whispered secrets? Wonderful. A Christ with calluses, who got hungry and tired, who bled and died? Embarrassing. They wanted spirituality without a body. In modern terms: the vibe without the man.

John could not go along, because John had touched him. 1 John 1:1 — "That which was from the beginning, which we have heard, which we have seen with our eyes, which we looked upon and have touched with our hands." And the risen Jesus had insisted on this very point: Luke 24:39 — "Touch me, and see. For a spirit does not have flesh and bones as you see that I have." A week later, doubting Thomas got the same invitation. John 20:27-28 — "Put your finger here, and see my hands... Do not disbelieve, but believe." Thomas touched, and out came the highest confession in all four Gospels: "My Lord and my God!" Notice the order John loves: real flesh first, then real worship.

Paul stakes everything on the same claim: Colossians 2:9 — "For in him the whole fullness of deity dwells bodily." All of God, in a real body. That is Christianity's wildest sentence, and the Spirit of God never backs away from it.

Augustine learned how rare that claim is. Before his conversion he devoured the best philosophy of his age. Those books spoke beautifully about a divine "Word" behind the universe. But one thing was missing:

"But that the Word was made flesh, and dwelt among us, I read not there." — Augustine, Confessions

Philosophy could imagine a god of pure spirit. Only the gospel dared say God took on skin. And the early church bled to keep that sentence intact, because our rescue depends on it. Gregory of Nazianzus, defending the faith in the 300s, put it in one famous line:

"That which He has not assumed He has not healed; but that which is united to His Godhead is also saved." — Gregory of Nazianzus, Epistle 101

In plain English: whatever Jesus did not actually take on, he did not actually save. If he only seemed human, we are only seemingly rescued. His friend in the fight, Athanasius, said it even more boldly:

"For He was made man that we might be made God." — Athanasius, On the Incarnation

Athanasius does not mean we turn into little deities. He means God came all the way down into our life so that we could be brought all the way up into his — adopted, forgiven, made alive forever. Take away "in the flesh," and the whole rescue collapses. That is why John makes it the dividing line.

The floodlight test

There is a second edge to today's test, and J.I. Packer found the perfect picture for it. The Holy Spirit, he wrote, works like the floodlights at a stadium. You do not go to a game to stare at the lights. The lights exist so you can see the field.

"The Spirit's message to us is never, 'Look at me; listen to me; come to me; get to know me,' but always, 'Look at him, and see his glory; listen to him, and hear his word; go to him, and have life; get to know him, and taste his gift of joy and peace.'" — J.I. Packer, Keep In Step With the Spirit

That is not Packer's invention; it is Jesus's own job description for the Spirit. John 16:14 — "He will glorify me, for he will take what is mine and declare it to you." The Spirit's mission, from the Son's own mouth, is to make Jesus bigger, clearer, and more beautiful to us. So here is the test in practice: after the experience — the worship night, the conference, the prayer meeting, the book — is Jesus the one who got bigger? Or did the experience itself become the point, something to chase for its own sake?

This is also the logic of Paul's strange-sounding rule in 1 Corinthians 12:3 — "no one can say 'Jesus is Lord' except in the Holy Spirit." Anybody can mouth the syllables. Paul means that nobody bows — nobody hands over the keys of their life to a crucified carpenter and means it — without the Spirit's power. Where people are genuinely, gladly confessing Jesus as Lord, the Spirit is at work. He is the only one who produces that.

Try the floodlight test on a week of your own inputs. The playlist, the podcast, the account you check before bed — when each one finishes, where are your eyes? Some things that never mention church somehow move you toward Christ. Some things wrapped in Christian packaging leave you staring at a personality, a feeling, or yourself. The packaging is not the test. The direction of your gaze afterward is.

And because the Spirit is the author of Scripture, he never detaches people from it. John Calvin warned about every spirituality that floats free of the Bible:

"Take away the Word, and no faith will then remain." — John Calvin, Institutes of the Christian Religion

A spirit that pulls you away from the Word is pulling you away from the only place the real Jesus is reliably found. Martin Luther added that the true Spirit does not deal in foggy maybes about Christ:

"The Holy Spirit is no Sceptic, and the things He has written in our hearts are not doubts or opinions, but assertions — surer and more certain than sense and life itself." — Martin Luther, The Bondage of the Will

The Spirit's voice has content. It says definite things about a definite person. Mist and mystery with no Jesus in the middle is not his style.

Which Jesus do you have?

Be careful, though, where you point this test first. It is tempting to aim it at other people's churches. John would have us aim it at the mirror.

Every heart quietly edits Jesus. We do to him what we do to our photos — crop, filter, brighten, delete the unflattering angles — until the picture matches the self we wanted to post. We like his comfort but crop out his commands, or we like his rules but crop out his mercy. We keep the Jesus who agrees with our politics and mute the verses where he does not. A Jesus whose cross is just a metaphor, whose resurrection is just a feeling, whose lordship is optional — that Jesus is easy to follow, because he is us, wearing a robe. The test of 1 John 4 asks: is the Jesus I pray to the one in the four Gospels — with sweat, tears, a real death, and scars you could touch?

Here is the gospel underneath today's test. The reason "in the flesh" is good news and not just correct doctrine is that it means God did not send a rescue message; he became a rescuer. He took on nerves that could feel nails. He went into death itself for us, and came out the other side still wearing our humanity. The counterfeits all eventually ask you to climb up to God on a ladder of secrets or feelings or effort. The real Jesus climbed down. And the Spirit's favorite work, every single day, is to take that down-climbing Christ — "what is mine," as Jesus said — and declare him to you, until your heart finally confesses it gladly. 1 John 4:15 — "Whoever confesses that Jesus is the Son of God, God abides in him, and he in God." Not "whoever feels intensely." Whoever confesses. That door is open to you this morning.

Going Deeper

Open the Gospel of Mark today — the shortest, most physical Gospel — and read one chapter as if for the first time. Count the bodies: dust, spit, bread, fevers, weeping, sleep in the stern of a boat. Then ask one honest question: is the Jesus I usually pray to this Jesus, or a smoother version I have quietly edited? Ask the Spirit to do his floodlight work and show you the real one.