1 Corinthians 14:30 - Coke's Commentary on the Holy Bible

Let the first hold his peace.— Some think that the word σαγατω here should be rendered, have done speaking; for if the direction had been, "Let him that was speaking immediately hold his peace, as soon as another intimates that he has a revelation," it would have introduced a confusion which this advice was intended to prevent.—"If any thing be revealed to another, &c. let him not immediately arise and interrupt the first, but let him sit still till he have done speaking." See 1 Corinthians 14:32-33.