What is the consequence of "v'Arecha Lo Sashovnah"?
Rashi: It is unlike I said about Egypt "v'Shavti Es Shevus Mitzrayim" (29:14), and "v'Ashiv Es Shevus Bnei Amon" (Yirmeyah 49:6), for "v'Es Esav Saneisi va'Asim Es Harav Shemamah" (Mal'achi 1:3) ? eternal desolation.
It is written Sishovnah, and we pronounce it Sashovnah!
Radak: The Kesiv refer to settlement. The pronunciation teaches that it will not return to its earlier state.
Why does it say "vi'Ydatem Ki Ani Hashem"?
Malbim: Then you 1 will know that I am Hashem, who punishes, like it says "Hemah Yivnu va'Ani Eheros" (Mal'achi 1:4).
Who will know? All will be killed! They will know as they die, like it says about Keri'as Yam Suf "v'Yad'u Mitzrayim Ki Ani Hashem" (Shemos 14:4). (PF)
