1 Corinthians 14:29

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.

Ver. 30. If anything be revealed to another that sitteth by, let the first hold his peace. Let him rise and speak; let the first cease and sit down. S. Ambrose says: " This is a custom of the synagogue which S. Paul borrows and enjoins on us. The elders in dignity sit in their chairs while discoursing, those next to them sit on lower seats, the last on mats spread on the pavement. If anything happens to be revealed to these last, he bids that they be listened to: they are not to be despised, for they are members of the same body. "