Don't you think that rather incongruous that, at the end time, even though there is a confederation of the children of Jordan (of ancient Edom and Moab and Ammon with the great beast power), yet they are NOT under their domination to such an extent that they are not free to act on their own. I think it is very interesting that Petra is in Edom. Edom remember occupied the southern part of the land of Jordan or the modern land of Jordan and "Petra" is the Greek equivalent of the Hebrew word "Selah"—which was translated there in the book of Job, chapter 39.
