In this context, these words are likely a command to the nations to stop their wars. Alternate translation: "Stop fighting" (See: [[rc://en/ta/man/translate/figs-explicit]])
These two phrases mean basically the same thing and emphasize that the people of every nation in the world will exalt God. This can be stated in active form. Alternate translation: "People from every nation will exalt me; people all over the earth will exalt me" (See: [[rc://en/ta/man/translate/figs-parallelism]] and [[rc://en/ta/man/translate/figs-activepassive]])