What Is the Old World?

In verse 10, if you're wondering what's going on with Sharon and Acor, Sharon is the western extreme and Acor is kind of like down there by Jericho. I think what Isaiah is trying to say is it's like what we would say in English from seed is shining sea, from east to west,. But Bryce, I really like the ending. Like I have a hard time with some of the rough stuff, but I reallylike the ending where he says, behold, I will create new heavens and a new earth"