What are the implications of "Yashan Noshan?? What advantage is there in eating old produce?
Rashi: Old crops in the storehouse will mature and improve with the passing of time, to the point that crops that is three years old will taste better than last years' crops.
Seforno: It teacthes us, that, although, in the time of Mashi'ach, the Nochri farmers and vine-growers who work in the fields and vineyards will be few and far between, what remains from last year's harvest will remain fresh, and, together with the meager amount gathered this year; we will be sustained without toil. 1
Targum Yonasan: The Torah mens that the old crops will not go bad but will remain perfectly edible.
Seforno: As the Pasuk indicates in Tehilim, 72:16, and as the Gemara states in Shabbos, 30b 'Eretz Yisrael will produce loaves of bread and woolen garments'.
Why is removing the old crops from the storehouses a B'rachah?
Rashi: Because the granaries containing the new grain are bursting to the seams, and one needs to clear the old grain out of the storehouses to make way for the new grain.
Rashbam: Because they will remove the excess produce from the storehouses in order to sell it (to take outof Eretz Yisrael to Chutz la'Aretz - Seforno). 1
Moshav Zekenim: The first and last letters of "Mipnei Chadash" spell 'Mashi'ach', and [with the next word "Totzi'u"] the last letters spell the name of a false Mashi'ach that the masses followed - and in whom they will cease to believe.
Rashi, citing Bava Basra 91b, writes that the old is better than the new. What is the point in taking out the old in order to replace it with something inferior?
Mizrachi: The storehouse prevents the new grain from rotting. You will clear the old grain from it to elsewhere.
Shir Ma'on (in Pasuk 5) said that you will sell the excess food to far away countries. It is better to sell old, and put the new into the storehouses to age! (PF)
