We get into this study and realize that God isn't just talking about a city that was one of the greatest trading sea isles in the Mediterranean, but it's also talking about who runs the show. Satan that deceiver sets up shop ripping off the whosoever will let him. This may something you may want to take notes. When Satan claims to be Christ in the 6th Trump in Jerusalem, he may setup shop again with help from those, "Great Merchants" like in the book of Revelations, possible setting up a world wide stock market. Makes sense since the Mark of the Beast will be you wont be able to buy or sell without the Mark.