What do we learn from "ba'Me'erah Atem Ne'arim... ha'Goy Kulo"?
Avodah Zarah 36a: If the entire nation can fulfill the decree, it is a proper decree. If not, it is not.
Rashi: Your hands' work is cursed for this Aveirah, and even so, you steal from Me!
Radak: You are cursed for these Aveiros - "v'Gam Arosiha" (2:2), and you still increase sin via what you gather. You do not give from it Terumos and Ma'aseros! The entire nation did not give Ma'aseros; not all transgressed the Aveiros mentioned above.
Malbim: You do not benefit from this theft, for you are cursed due to it!
Also the previous verse said "Atem Kove'im Osi"!
Radak: You have two sins. You gather without giving Terumos and Ma'aseros, and you say that I steal rain and send a curse without reason.
Malbim: Here it teaches that the entire nation does so, and not only individuals.
