All? Really? All? Like “that would hang us every mother’s son?” All?
It’s kind of a great word for a whole bunch of people to all decide to say together. “Gentlemen” doesn’t necessarily roll right off the tongue. Who would kick off this all with “gentlemen”? My guess is the priest. And others backed him up.
Or the king, I suppose. But he’s just spoken and no one joined in. I’m sticking with the priest.