In this passage the apostle pursues the argument, and reasons from other topics; as,

I.Tongues, as the Corinthians used them, were rather a token of judgment from God than mercy to any people (Co1 14:21): In the law (that is, the Old Testament) it is written, With men of other tongues and other lips will I speak to this people; and yet for all this they will not hear me, saith the Lord, Isa 28:11. Compare Deu 28:46, Deu 28:49. To both these passages, it is thought, the apostle refers. Both are delivered by way of threatening, and one is supposed to interpret the other. The meaning in this view is that it is an evidence that a people are abandoned of God when he gives them up to this sort of instruction, to the discipline of those who speak in another language. And surely the apostle's discourse implies, "You should not be fond of the tokens of divine displeasure. God can have no gracious regards to those who are left merely to this sort of instruction, and taught in language which they cannot understand. They can never be benefited by such teaching as this; and, when they are left to it, it is a sad sign that God gives them over as past cure." And should Christians covet to be in such a state, or to bring the churches into it? Yet thus did the Corinthian preachers in effect, who would always deliver their inspirations in an unknown tongue.

II.Tongues were rather a sign to unbelievers than to believers, Co1 14:22. They were a spiritual gift, intended for the conviction and conversion of infidels, that they might be brought into the Christian church; but converts were to be built up in Christianity by profitable instructions in their own language. The gift of tongues was necessary to spread Christianity, and gather churches; it was proper and intended to convince unbelievers of that doctrine which Christians had already embraced; but prophesying, and interpreting scripture in their own language, were most for the edification of such as did already believe: so that speaking with tongues in Christians assemblies was altogether out of time and place; neither one nor the other was proper for it. Note, That gifts may be rightly used, it is proper to know the ends which they are intended to serve. To go about the conversion of infidels, as the apostles did, had been a vain undertaking without the gift of tongues, and the discovery of this gift; but, in an assembly of Christians already converted to the Christian faith, to make use and ostentation of this gift would be perfectly impertinent, because it would be of no advantage to the assembly; not for conviction of truth, because they had already embraced it; not for their edification, because they did not understand, and could not get benefit without understanding, what they heard.

III.The credit and reputation of their assemblies among unbelievers required them to prefer prophesying before speaking with tongues. For, 1. If, when they were all assembled for Christian worship, their ministers, or all employed in public worship, should talk unintelligible language, and infidels should drop in, they would conclude them to be mad, to be no better than a parcel of wild fanatics. Who in their right senses could carry on religious worship in such a manner? Or what sort of religion is that which leaves out sense and understanding? Would not this make Christianity ridiculous to a heathen, to hear the ministers of it pray, or preach, or perform any other religious exercise, in a language that neither he nor the assembly understood? Note, The Christian religion is a sober and reasonable thing in itself, and should not, by the ministers of it, be made to look wild or senseless. Those disgrace their religion, and vilify their own character, who do any thing that has this aspect. But, on the other hand, 2. If, instead of speaking with tongues, those who minister plainly interpret scripture, or preach, in language intelligible and proper, the great truths and rules of the gospel, a heathen or unlearned person, coming in, will probably be convinced, and become a convert to Christianity (Co1 14:24, Co1 14:25); his conscience will be touched, the secrets of his heart will be revealed to him, he will be condemned by the truth he hears, and so will be brought to confess his guilt, to pay his homage to God, and own that he is indeed among you, present in the assembly. Note, Scripture - truth, plainly and duly taught, has a marvellous aptness to awaken the conscience, and touch the heart. And is not this much more for the honour of our religion than that infidels should conclude the ministers of it a set of madmen, and their religious exercises only fits of frenzy? This last would at once cast contempt on them and their religion too. Instead of procuring applause for them, it would render them ridiculous, and involve their profession in the same censure: whereas prophesying would certainly edify the church, much better keep up their credit, and might probably convince and convert infidels who might occasionally hear them. Note, Religious exercises in Christian assemblies should be such as are fit to edify the faithful, and convince, affect, and convert unbelievers. The ministry was not instituted to make ostentation of gifts and parts, but to save souls.

And thus are the secrets of his heart - As these, who were the prophets or teachers, had often the discernment of spirits, they were able in certain cases, and probably very frequently, to tell a man the secrets of his own heart; and, where this was not directly the case, God often led his ministers to speak those things that were suitable to the case before them, though they themselves had no particular design. The sinner, therefore, convinced that God alone could uncover the secrets of his heart, would be often obliged to fall down on his face, abashed and confounded, and acknowledge that God was truly among them. This seems to be the plain meaning of the passages before us.

How is it then, brethren?.... Or "what is it brethren?" The Arabic renders it, "what is the sense of my words?" The meaning of what he had said, the drift of his whole discourse; or rather the sense is, what is to be done in the case he was about to propose?

when ye come together; as a church into one place, to worship God;

everyone of you hath a psalm; not that everyone had this, or any other gift here mentioned, but that there were some among them that had one or other of these several gifts: some of them had a gift of composing and singing a psalm extempore; they delighted in psalmody, and were forward to promote it, and fond of spending the time wholly in it.

Hath a doctrine; others of them had a gift of deducing doctrines out of the word of God, which is profitable for that purpose, in an extraordinary manner, without study, and were capable of teaching them, and instructing men in them in a very edifying way:

hath a tongue others had the gift of speaking with divers tongues; or had knowledge and skill in the Hebrew tongue, could not only pray and sing in that language, and read the sacred text, but could deliver a sermon in it.

Hath a revelation; others had a peculiar insight into the types and figures of the Mosaic dispensation, a clear view of the prophetic writings, and a large discovery of the mysteries of the Gospel, by the Spirit, as a spirit of wisdom and revelation.

Hath an interpretation; others had a gift of interpreting languages, particularly the Hebrew language, when anything was delivered therein by another. Now the apostle answers to the question, what is to be done in such a case, where there is such a variety of gifts, and everyone is desirous of exercising his peculiar gift?

let all things be done to edifying; intimating, that each of these things might be done; every gift might be made use of: he that had a psalm might sing it; and he that had a doctrine might deliver it; he that had a tongue might speak with it; and he that had a revelation might declare it; and he that had an interpretation might make use of it; provided that care was taken that each was done in such a manner, as might be for the edifying of the church that was met together; otherwise, if it was only for ostentation sake to make a show of their gifts and talents, and to nourish their own pride and vanity, no good end would be answered; it had better be let alone: but if edification could be promoted, each gift might be employed; for which the apostle gives the following directions.

And thus--omitted in the oldest manuscripts and versions.

secrets of his heart made manifest--He sees his own inner character opened out by the sword of the Spirit (Heb 4:12; Jam 1:23), the word of God, in the hand of him who prophesieth. Compare the same effect produced on Nebuchadnezzar (Dan 2:30 and end of Dan 2:47). No argument is stronger for the truth of religion than its manifestation of men to themselves in their true character. Hence hearers even now often think the preacher must have aimed his sermon particularly at them.

and so--convicted at last, judged, and manifested to himself. Compare the effect on the woman of Samaria produced by Jesus' unfolding of her character to herself (Joh 4:19, Joh 4:29).

and report--to his friends at home, as the woman of Samaria did. Rather, as the Greek is, "He will worship God, announcing," that is, openly avowing then and there, "that God is in you of a truth," and by implication that the God who is in you is of a truth the God.