it was a misunderstanding as the previous comment said, the young priest thought that because the high priest (which it seems high priest going to weddings even as guests is uncommon) was going it meant there were changes to the one who was officiating the wedding, but the original priest didn't know his name was on the invitation which i guess by their standards the one who is on the invitation is the only one who can ordain the ceremony for it to not be seen by g** or something i don't know