Commentary for Isaiah 37:18

Indeed, O Lord It is true that the kings of Assyria destroyed

all the countries and their land “The countries” refers to the (capitals) of the provinces, and (“their land” refers to) the land near them, the royal cities, which are the heads of the provinces, he calls “countries” and the remaining regions surrounding them he calls “their land.” And in the Book of II Kings (19:7) it is written: “the nations and their land.” It has, however, one meaning.