'Armies' in the Bible

“Then it will sweep on into Judah; it will overflow and pass through [the hills],Reaching even to the neck [of which Jerusalem is the head],And its outstretched wings (the armies of Assyria) will fill the width of Your land, O Immanuel.

The [mournful, inspired] oracle (a burden to be carried) concerning the Desert of the Sea (the seasonally flooded plains just south of Babylon):As windstorms in the Negev (the South) sweep through,So it (God’s judgment) comes from the desert, from [the hostile armies of] a terrifying land.