The following is a translation of chapter 7 of HaMagid Doresh Tzion, part of the book Doresh L'Tzion, which is part of the set Torat HaGeulah.
One that Refrains from Helping the Mitzvah of Yishuv HaAretz is Considered as Among a Culture of Sinners
In parshat Matot, the request of B'nei Gad and Reuven to Moshe Rabbeinu is told, that he (Moshe) would give to them land for an inheritance on the eastern side of the Jordan. Moshe replies to them "Why would you turn away the heart of B'nei Yisrael from crossing to the land which Hashem gave them?", and in the rest of his words, he compares them to the spies that turned away the heart of B'nei Yisrael in to not coming to the land which Hashem gave them, and calls them a culture of sinners.
From Moshe's harsh answer to B'nei Gad and B'nei Reuven, we have much to learn for our times, for did B'nei Gad and B'nei Reuvent say anything bad about Eretz Yisrael? And it is only because they requested to settle on the eastern side of the Jordan that he called them "turners away of the heart of B'nei Yisrael from crossing the Jordan", and compares them to the Spies, and calls them a culture of sinners, and they replied "we will be armed and ready to go before B'nei Yisrael ... " and only on that condition did Moshe Rabbeinu acquiesce.
From here we learn 2 important ideas:
- Everyone that refrains from joining in Kibbutz Galuyot, and even though he doesn't harm the mitzvah at all is thought of as one that prevents the hearts of others from B'nei Yisrael from fulfilling this great mitzvah, and he is thought of as sinning the Sin of the Spies, and a helper of a culture of sinners.
- Anyone that helps Kibbutz Galuyot and Yishuv Eretz Yisrael with dedication brings a Tikkun against the Sin of the Spies, like the answer of B'nei Gad and B'nei Reuvent "we will be armed and ready to go before B'nei Yisrael".
And why all this? Because the Mitzvah of Yishuv Ha'Aretz is equal to all the other mitzvot in the Torah as brought in the Sifri on the verse "And you shall inherit it and settle in it" (Devarim 11). And thus is the ruling for the mitzvah of building Yerushalayim, for Kibbutz Galuyot and the building of Yerushalayim are connected according to the verse "Hashem builds Yerushalayim, the dispersed of Yisrael he will gather" (Tehillim 147).