What is the meaning of "va'Ashisehu Vasah"?
Rashi: It is an expression of desolation and void. The same applies to "b'Nachalei ha'Basos" (7:9).
Rashi (7) #1: I made Adam desolate; I did not give Torah in his days.
Rashi (7) #2: I will shred them.
Malbim: I will fix that the place be forever desolate.
Why does it say "Lo Yizamer"?
Rashi (7) #1: People will not learn from Adam merit.
Rashi (7) #2: I will not help him.
Radak: I will not cut branches to increase Peros. Not only will I make it Hefker, and animals will consume and trample it - the remaining vines, I will not do any work to make them bear fruits. I will leave them desolate. Since I will not tend it, "Shamir v'Shayis" will come on it. The Nimshal is, even though I removed My Shemirah from them, and the Goyim will consume them, and most of them, i.e. the 10 tribes, were exiled from their land, I will not benefit those who remain. I will not send My Brachah to increase and multiply, the way people cut branches to increase Peros.
Malbim: I will not cut thick branches that weaken the vine.
What is "Ye'ader"?
Rashi: It is digging in the vineyard.
Rashi (7) #1: It is doing good deeds from which others learn.
Rashi (7) #2: It is supporting.
Radak, Malbim: It is digging around the branch and uprooting the thorns and weeds.
What are "Shamir v'Shayis"?
Rashi citing Menachem: They are kinds of thorns. Rashi (7) - so Yonason translates below (7:23-25).
Rashi: Shamir is a strong worm that cleaves rocks. Shlomo used it to build the Beis ha'Mikdash - "k'Shamir Chazak mi'Tzor" (Yechezkel 3:9). Shayis is like "ha'Seis veha'Shever" (Eichah 3:47). It is an expression of "Tisa'eha Shemamah" (below, 6:11). No one seeks it to enter it, and amidst this, worms come on it.
Rashi (7) #1: The Yetzer ha'Ra ruled over [Adam]. People will not learn from him good deeds.
Rashi (7) #2, from Targum Yonasan: It is being moved around and abandoned, similar to Shamir v'Shayis of a vineyard.
Radak: This means that their deeds will be cursed - "veha'Mistaker Mistaker El Tzror Nakuv" (Chagai 1:6; one who profits in commerce, or hires out himself or his animal, it will be cursed, as if he put [the coins] in a garment with a hole at the bottom - they fall out).
What will He command the clouds?
Rashi (7) #1: I commanded them to guard the path to Eitz ha'Chayim [lest Adam eat from it].
Rashi (7) #2, Radak, Malbim, from Targum Yonasan: I will order the Navi not to prophesize about them. Rashi - Nevu'ah is compared to rain; the clouds receive it from Shamayim. So Nevi'im receive Nevu'ah from the mouth of Kedushah!
Radak: It is a metaphor - I will hold back My Brachah from their land - "v'Atzar Es ha'Shamayim
