Biblion Bible Commentary
Read the introduction to 1 Corinthians · About this commentary
A Sign to the Unbeliever
1 Corinthians 14:20-25
20 Brothers, don’t be children in thoughts, yet in malice be babies, but in thoughts be mature. · WEB
Paul asks them to imagine a visitor walking in, and the two scenes he sketches decide the question.
Brothers, don't be children in thoughts, yet in malice be babies, but in thoughts be mature 1 Corinthians 14:20.
A neat inversion of the letter's earlier charge. They had been called babies who could not take solid food 1 Corinthians 3:1; here infancy is prescribed — in malice, where inexperience is a virtue — and maturity demanded in thinking. A congregation attracted to the most impressive-looking gift is being asked to reason about it.
In the law it is written, "By men of strange languages and by the lips of strangers I will speak to this people. They won't even listen to me that way, says the Lord" 1 Corinthians 14:21.
The quotation comes from Isaiah Isaiah 28:11–12, where foreign speech was a judgment: Judah would not hear the prophet's plain words, so God would address it through the language of an invading army — and it would still not listen. Unintelligible speech, in its scriptural precedent, is a sign of estrangement rather than of favor. That is a considerable reframing for people who treated the gift as the mark of arrival.
Therefore other languages are for a sign, not to those who believe, but to the unbelieving; but prophesying is for a sign, not to the unbelieving, but to those who believe 1 Corinthians 14:22.
The verse is compressed, and the two scenes that follow are what unpack it. Both gifts function as signs, and each is aimed at a different audience — which means a gathering of believers using the gift meant as a sign to outsiders has its instruments pointed the wrong way.
If therefore the whole assembly is assembled together and all speak with other languages, and unlearned or unbelieving people come in, won't they say that you are crazy? 1 Corinthians 14:23.
The first scene. A visitor walks into a room where everyone is speaking at once in words he cannot follow, and draws the obvious conclusion — and crazy is the sign the Isaiah quotation predicted: judgment, not conviction. Note that Paul cares what an outsider thinks of the meeting. The assembly is not a private space.
But if all prophesy, and someone unbelieving or unlearned comes in, he is reproved by all, and he is judged by all. And thus the secrets of his heart are revealed. So he will fall down on his face and worship God, declaring that God is among you indeed 1 Corinthians 14:24–25.
The second scene, and it describes conversion without using the word. Intelligible speech about God does something to a listener that impressive noise cannot: he is reproved, judged, and the secrets of his heart are revealed — not by anyone reading his mind, but because plain truth spoken in a room exposes the hearer to himself Hebrews 4:12 John 4:29. The outcome is worship and a verdict on the congregation: God is among you indeed.
Which answers the Corinthian instinct on its own ground. They wanted their meetings to demonstrate God's presence. The way that actually happens, in this chapter, is that a stranger understands what is being said.
settled What this mark means