Woe to a multitude of many peoples, like the roaring of seas they roar; and a rushing of nations, like the rushing of mighty waters they rush.

הוֹי הֲמוֹן עַמִּים רַבִּים כַּהֲמוֹת יַמִּים יֶהֱמָיוּן וּשְׁאוֹן לְאֻמִּים כִּשְׁאוֹן מַיִם כַּבִּירִים יִשָּׁאוּן

Woe to a multitude of many peoples: This is a principle followed throughout all generations; the scourge by which Israel is punished, shall eventually suffer. Therefore, the prophets who prophesy Israel’s retribution through the nations, juxtapose after it the retribution of the nation by which Israel was punished.

a multitude of many peoples: The armies of Sennacherib.

they rush: an expression of rushing and roaring.