Considering things from a biblical point of view from the beginning of the creation man has been driven out of Eden, the world destroyed, man/men taken into slavery ect. The Amorites and others others lands and entire kingdoms taken away and then given to others. This I think is no different in Babylon,Persia,Greece,Rome, Israel or the Americas God is who appoints kingdoms and takes them away. It's those peoples of those kingdoms who should ponder why they were given an kingdom or why it was taken away and if God does this or just some man.