But if all prophesy, and some unbeliever or simple [person] come in, he is convicted of all, he is judged of all;
Paul has just pictured a room where everyone speaks in unknown languages, and a visitor walks out calling them mad. Now that same visitor walks in on a room where everyone prophesies, and everything changes.
One reference work starts from the word itself, then defines the gift by its effect:
The word comes from a verb meaning "to speak forth," so we can describe a prophet as a spokesman of God. Prophecy of this kind is a gift in the church for the building up of the saints, bringing God's word with power upon their consciences and hearts. It is the gift of most importance in the church.
It also sets prophesying apart from evangelizing and teaching. Kelly adds that Paul is supposing a case, not reporting one:
This is what marks prophesying. It is not the announcement of the good news, as in evangelizing. It is not the unfolding of doctrine, as in teaching. It is God using His word to deal with the soul, so that the soul is conscious of it. … Paul does not describe this as a fact that ever took place. He describes the natural effect under such circumstances.
Kelly sets the two outcomes side by side, then points to a woman who met a stranger able to tell her own life story:
Suppose they all speak in tongues in full assembly, in front of simple people or unbelievers. What impression will that make? That the saints were mad. Now suppose they all prophesy. How would such a person feel when he came in and heard? His heart's secrets are uncovered to him, and God deals with them through all of the speakers. He is left with the deepest conviction that God is truly among the saints. The woman of Samaria met One who had never seen her before, and He set out her life in a few words. She confessed, "Sir, I perceive that you are a prophet." His words made her feel and admit that everything was out, and that God was speaking to her conscience.
Being "convicted" and "called to account" is not a public interrogation. Nobody in the room learns anything about the visitor:
Such a one, convicted and judged, will "worship." He worships because he finds God working in this way, and he falls down and owns Him. The presence of God acts on his spirit and bows it, and reaches his conscience. He hears the secrets of his own heart told out to him. God's presence brings it all to light for him, without his saying a word to anyone. It is the power of the Spirit of God on a man's conscience.
This ministry was never designed for the outsider. Believers were speaking to believers, and he happened to be there:
Truth given honestly, and pressed home with sober reality to believers, can bring the secrets of an unbeliever's heart to light before him. It reaches his conscience, though the Word is not aimed at him.
Darby points out where the visitor's conclusion lands, and where it does not:
The passage assumes that the whole body could act in this way, in the most public and obvious gifts. The unbeliever does not fall down and confess that God is in this or that gifted person. Still less does he admire or look up to the spiritual attainments of one individual. He confesses that God is in the assembly, among the Christians. And is this to be lost, and not even sought, and individual attainment put in the place of the presence of God in the assembly?
Kelly separates two senses of the word, and keeps only one of them for today:
Prophesying is not predicting something you must wait for, to see whether it comes to pass. I do not believe that a person predicting things now would fit the way the Holy Spirit acts, for the simple reason that the predictions that matter for God and for man are already given in the written word. But there remains the other sense of it — bringing out the truth of God so as to deal with man's conscience, and give him the full conviction that it is God who is speaking to him through a man. I see no reason to doubt that God still grants this — in feeble measure perhaps, and in rare cases; but still, I cannot doubt that the principle is true, and that it will not fail as long as God has work and testimony on the earth.
- Speak forth. Prophesying is speaking for God so that His word lands on the conscience. It is not foretelling, evangelizing, or lecturing.
- All, not one. Paul supposes a whole company able to speak, so no single gifted person gets the credit.
- Conscience, not argument. No one argues the visitor down. His own hidden secrets come out to him, and he bows.
- Overheard, not targeted. The ministry was for believers. Truth meant for them convicts the outsider anyway.
- God, not the speakers. The verdict he leaves with is about who was present in the room, not about who was impressive in it.
the secrets of his heart are manifested; and thus, falling upon [his] face, he will do homage to God, reporting that God is indeed amongst you.
A stranger with no faith walks into a gathering of Christians. He hears the word of God spoken plainly, and he ends up on his face, worshipping. This verse shows what that word did inside him, and what he then said about the people he had walked in on.
The whole result turns on the kind of speaking described in verse 24. One commentator draws a sharp line between it and other useful ministry:
Prophesying is the spiritual application of God's word to the conscience. It puts the soul in His presence. It shows the mind of God to the hearer, clear as light. Much valuable teaching, encouragement, and application has no such character. It is all very true, but it does not put the soul in the presence of God.
Nobody in the room knows this visitor's history. The disclosure runs one way — inward.
Such a one, convinced and judged, will "worship," because he finds God working like this, and falls down and owns Him. The presence of God acts upon his spirit and bows it, and his conscience is reached. The secrets of his heart are told out to himself. God's presence finds it all out to himself, without his speaking to others. It is the power of the Spirit of God on a man's conscience.
The believers were not preaching to him at all. They were speaking to each other.
The truth itself (not necessarily the simple gospel) would convict the man's conscience. That is even more so when believers press the truth home to one another's hearts and consciences — not at all with the unbeliever in mind. Truth given honestly, and applied to believers with sober reality, may show an unbeliever the secrets of his own heart. His conscience is reached, though the Word is not directed at him.
The same thing had already happened to one woman, face to face:
One who had never met the woman of Samaria before set out her whole life in a few words. She confessed, "Sir, I perceive that you are a prophet." His words made her feel and admit that everything was out, and that God was speaking to her conscience.
His verdict is not about a gifted speaker. It points at the company as a whole. Older translations read "God is in you" here:
In verse 25 "God is in you" is collective. The Greek preposition covers both "among" and "in" when the noun is collective. "In you" is perhaps better, because it looks at the assembly as a whole.
What he found there, he found nowhere else in the city:
Detected and exposed by the prophetic ministry, the man's heart is reached. He worships God. He has proved that God had a temple at Corinth, and he met God in His temple there. Suppose we all walked in the truth of this and were gathered like this today. A worldly man coming in would find such power that he would say, "There were a lot of Christians there, but God was there too."
Paul writes the verse as a supposition, not a report. Commentators differ over how far the gift behind it continues. One says it belonged to the time before Scripture was complete:
Some of the prophetic gift in reaching the conscience may still survive. But when God's Word was completed, everything He meant to reveal through prophecy had already been brought out. So the foundation part of the prophetic gift had to disappear.
Others expect the same result wherever God is present among gathered believers:
In this supposed case, all the prophesying would bring the conviction home to him, and he could not resist it. It would also produce the report he makes and the homage he pays at that moment. This effect is not meant to come from one man preaching in demonstration of the Spirit and of power. It comes from God's presence in His saints as they prophesy like this in the assembly. The apostle does not describe it as a fact that ever did take place, but as the natural effect under the circumstances.
- Presence, not performance — prophesying is more than good teaching; it applies God's word to the conscience and sets a soul in front of God.
- Presence exposes — the visitor's hidden things surface. God tells them to him, and to no one else.
- Presence convicts without aiming — believers spoke the truth to each other, not at the visitor. His conscience was reached anyway.
- Presence is collective — his verdict is about the whole company, not a speaker: God is among you.
- Presence produces worship — the outcome is not applause but a man on his face, who met God and says so afterwards.