Let the prophets speak two or three, viz, their prophecies or revealed truths, or intuitions or exhortations inspired into them by God. See what was said at the beginning of the chapter.
And let the other judge. Let the other prophets, not the people, judge by the gift they have whether what the prophet or teacher says is prophecy indeed, that is sound and wholesome doctrine, or not; for it does not belong to the laity to judge of the doctrines of religion, as heretics infer from this verse. It would be as absurd and foolish for the people to judge of prophecies, prophets, teachers, and pastors as for a scholar to judge his teacher, a sheep its shepherd, and a soldier his commander.
Each one ought not to strive obstinately for that which he learned and once held, but if anything better or more useful should exist, he should embrace it willingly.
Paul, moreover, looking forward to this, and consulting faithfully for concord and peace, has laid down in his epistle this rule: "Moreover, let the prophets speak two or three, and let the rest judge. But if anything be revealed to another that sitteth by, let the first hold his peace."
Two or three, who have the gift of prophecy, may speak by turns in one of these assemblies, and the rest of the prophet shall judge, whether he be truly inspired, and speak good doctrine.
If any thing be revealed to another sitting by, let the former, who was standing and speaking, hold his peace, which they can do; for the spirits of the prophets are subject to the prophets, that is, they are not like men possessed with evil spirits, who have not power to desist, or to be silent; but these who are moved by an impulse of the holy Spirit, have it in their power either to speak or to be silent, as they judge convenient; for the true God is not the God of dissension and confusion, but the God of peace and order. (Witham)
No where has he added, at the most, as in the case of the tongues. And how is this, one says? For he makes out that neither is prophesy sufficient in itself, if at least he permits the judgment to others. Nay, surely it is quite sufficient; and this is why he did not stop the mouth of the prophet, as of the other, when there is no interpreter; nor, as in his case he said, if there be no interpreter let him keep silence, so also in the case of the prophet, if there be none to discern, let him not prophesy; but he only secured the hearer; since for the satisfaction of the hearers he said this, that no diviner might throw himself in among them. For of this also at the beginning he bade them beware, when he introduced a distinction between divination and prophecy, and now he bids them discriminate and spy out the matter, so that no Satanic teacher might privily enter.