What does this Nevu'ah discuss?
Rashi: It is about the multitudes of Gog and Magog - "Paras Kush u'Fut Atem" (Yechezkel 38:5). Radak - after mentioning the salvation in the days of Chizkiyah, it mentions the great salvation to come in the days of Mashi'ach.
Malbim: This explains the Mashal before this; the multitude of nations is the hot land on the other side of the rivers of Kush 1 , i.e. Eretz Ashur 2 .
This Kush is in Asia. There is another Kush that borders Egypt - refer to Shemos 7:27:151:1*. (PF)
What is the meaning of "Hoy Eretz Tziltzal Kenafayim"?
Rashi citing Targum Yonasan: They come to [the land] in boats from a far land, and their sails are spread like a Nesher, which flies with its wings. Radak - it is called "Tziltzal Kenafayim" due to the many boats. When the sails are spread they resemble wings, and they travel via them, like a bird flies with its wings, and the sails make shade.
Rashi: Because they dwell in the east, and the land is hot, birds gather there, and it is buzzing with [the sound of] birds' wings.
Radak: The verse calls out to the land on the other side of the rivers of Kush.
