The Ramban says that Shmita and the Yovel cycle are fundamental mitzvos. Something is lost on us today – slavery has mostly vanished from earth, and Shmita and Yovel have long been missing large chunks of their key halachos for thousands of years.

Consider the fact that when the Ramban classified it as fundamental, Yovel hadn’t been properly marked for centuries. What about it is fundamental when the laws associated with it seems so antiquated, archaic, and arguably irrelevant?

The Pnei Yehoshua explains that Yovel is not just a time when slaves go free – it is a Yom Tov that celebrates freedom and liberty. The Sfas Emes notes that the nation was born by being liberated from the crucible of Egypt.

After millennia of exiles, restrictions on movement, bans, pogroms, genocide, and general oppression, society has developed to give all people human and civil rights; Jews can now practice Judaism relatively freely, to the extent that younger people today have little idea of what not being free means. While progress is undoubtedly a good thing, we must be vigilant not to take our rights for granted.

One of the brachos said daily is שלא עשני עבד – perhaps this alludes the principle that we do not take our unprecedented liberties for granted.

Yovel was dedicated to displaying our gratitude that we are always able to serve God – indicated by the shofar being blown. It becomes abundantly clear why it is classified a foundational mitzva; freedom is a wonderful thing that we are very grateful for. But moreover, perhaps it shows that even under oppression, slavery, and exile, we are nonetheless subjugated exclusively to God.

The soul always remains free.

At the end of Creation, before the first Shabbos begins, the concluding overview summarizes how all the component parts came together:

וַיַּרְא אֱלֹהִים אֶת-כָּל-אֲשֶׁר עָשָׂה, וְהִנֵּה-טוֹב מְאֹד; וַיְהִי-עֶרֶב וַיְהִי-בֹקֶר, יוֹם הַשִּׁשִּׁי – And God saw all that He had done, and it was very good. With an evening and a morning, the sixth day. (1:31)

The Ramban notes how כָּל-אֲשֶׁר עָשָׂה includes the  unpleasant aspects of creation which are nonetheless labeled טוֹב מְאֹד – excellent. With a greater perspective, everything turns out for the best.

The Netziv further adds that this was not just true of that individual moment. Within that moment, all potential and future moments were dormant, and all that latent potential was excellent as well.

Rabeinu Bachye notes how at the conclusion of every other day, the Torah describes it as כי טוב – it was “good”. But on the final day, where all the different aspects of existence had been formed and came together, it became something else; טוֹב מְאֹד – “excellent”. The creation itself was truly greater than sum of its parts; like a sophisticated machine, all the various levers, gears and cogs came together to become something utterly incredible.

The Kli Yakar points out the contrast between the first five days of כי טוב, and the conclusion of events called וְהִנֵּה טוֹב מְאֹד. The Kli Yakar explains that כי is a term of clarification. It indicates a deliberation weighing towards טוב. But when everything comes together, it is unqualified – וְהִנֵּה טוֹב מְאֹד – it is clearly and absolutely good.

The Sforno explains that the conclusion of creation achieved an equilibrium; existence was literally “at rest” – precisely the definition of Shabbos. With the acceptance and absorption of the imperfections in the world, the Torah was in balance. The Torah calls this טוֹב מְאֹד.

Existence was whole, complete and in balance. On such a sixth day – הַשִּׁשִּׁי – “the” perfect sixth day, Shabbos can finally commence.

Perfection is seeing that there are countless components to the sophisticated machine that is life, some of which are tough, but all of which, together, make it work. It just takes a little perspective.

The books of the Torah transition into each other, beginning new phases in the Jewish people’s development.

The book of Shemos is known as Sefer HaGeula – the Book of Redemption, or Exodus, named for how the Jewish people achieved liberty and independence, culminating in Sinai. But only the first quarter addresses this. The remainder addresses the Mishkan and its requirement.

What does the Mishkan have to do with redemption the book is named after?

The Ramban explains that the book measures the full spectrum of redemption. Redemption of the body is incomplete without redemption of the soul. The nation only had a purpose once the Torah was given a home among the community, and the community could carry the Torah into their lives.

The conclusion of Bereishis concludes with the same theme.

The Ksav Sofer explains that Yaakov descendants bless their children to be like Efraim and Menashe, who were excellent Jews worthy of being considered as if they were Yakov’s own, while simultaneously aiding Yosef with the administration of Egypt’s government.

The story of Bereishis ends in the rise of the Jew in both spiritual and earthly pursuits on a personal level, and the story of Shemos extends that to the national scale.

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The Musaf prayer of the every festival delineates and substitutes for their respective sacrifices. At both Pesach & Succos the concept of offering the sacrifice on the Mizbeach is introduced before the mention of Mikra Kodesh – a Holy Convocation, wherein the day become holy – literally “holiday”.

Regarding the Pesach offering, the sacrifice is mentioned in Bamidbar 28:18, and Mikra Kodesh is mentioned in the following pasuk. On Succos, the offering is mentioned in Posuk 29:12 and the Mikra Kodesh follow. When it comes to Shavuos it mentions the offering first in 28:13 and later declared Mikra Kodesh. Why does the order change by Shavuos?

There is a big difference between the festivals of Pesach and Succos in contrast to Shavuos. By the Festivals, we have power over the times of the festivals – מקדש ישראל והזמנים. Not so with Shabbos, which is set in stone from Creation, whereby every 7th day is holy. Festivals are based on when Rosh Chodesh falls, which are entirely flexible, based on when the Sanhedrin decided to start the new month.

Pesach and Succos are based on Rosh Chodesh – the 15th day of the Rosh Chodesh proclaimed by the Sanhedrin is called Mikra Kodesh – because we have said when Rosh Chodesh is, the 15th day becomes set aside. To honour the day we bring an offering – the offering follows the holiness of the day.

However, Shavuos is not based on Rosh Chodesh Sivan at all; it is based on the 49 days of Sefira. The Torah says that the moment the counting is complete, an offering is brought. Distinct from Sukkos and Pesach, there is an obligation to bring an offering, and the day becomes holy as a result.

This explains the order events perfectly. By Pesach and Succos, Mikra Kodesh is based on Rosh Chodesh, and the offering is subsequent. But on Shavuos, the offering is the primary feature which is based on counting the Omer, and Mikra Kodesh is secondary.

The Ramban writes that Shavuos is to Pesach as Shemini Atzeres is to Succos, and the 49 days of sefira in the middle are like it’s Chol haMoed. Knowing that Shavuos is not made holy by the day itself, but by the counting of the days from Pesach, the meaning of this is clear.

It’s a very basic question, and there are many approaches to take. The Ramban on Vayikra 1:9 discusses various approaches we will analyse, and is widely considered one of the fundamental parts of the Ramban’s commentary on the Chumash.

The Ramban quotes the Rambam in Moreh Nevuchim as the first approach. The Rambam writes there that the idea of Jews using animal sacrifice was necessary for the people as they needed a physical method of worship, having been a part of the pagan culture in Egypt and other such places. To battle and rectify the idol worship in the world, the Jews would do the same action for a sacred purpose.

The Ramban disagrees strongly with this on many facets. If we base an entire method of service to Hashem on the actions of fools and sinners, why would Hashem gain anything from it at all? Vayikra 1:9 says that the korban creates אשה ריח ניחוח ליהוה – Hashem “enjoys” the fact that we bring korbanos. The implication of the Rambam is that the korbanos are more for man than Hashem, but  if the korbanos were for man, why would Hashem enjoy it? We must find a suitable explanation for bringing korbanos that also explains why Hashem instructs it of us, rather than why why we ought to do it.

The Ramban points out that if the Rambam in Moreh Nevuchim is correct, that Jewish animal sacrifice only exists to battle idol worship, then we would not find instances of korbanos before an instance of idol worship. But this is not so – Adam was the first human – there were obviously no other people around to worship idols – yet he brought korbanos nonetheless, and so too with Noach; his family were the sole survivors of the Flood – so again, there could be no idol worshippers – and we find that nonetheless he did bring korbanos. How would the Rambam explain these instances where there was no idol worship to fight?

He further asks why the solution to idol worship would be to do the same thing in a different way – this seems to lend credibility to the idolatry the korbanos are trying to fight, chas v’shalom. It would seem that it would be better to just eat animals and not have sacrifices at all if we were indeed trying to fight the credibility of idol worship, as eating them shows we don’t consider them to be worthy of special attention.

R’ Yakov Minkus explains the solution to this issue. The Rambam in his magnum opus, the Mishneh Torah (Hilchos Me’ila 8:8) writes explicitly that the yesod – the distilled, fundamental, reason to bring korbanos is a חוק – there is no reason to do it other than the fact we were told to. The Moreh Nevuchim explains the inverse of this – once the mitzva exists, there is a spillover effect that we can relate to more, but the underlying reasoning remains a חוק. With this knowledge at hand, of course Noach could bring a korban, and the question about the non-existence of idol-worship falls away. Battling idol worship isn’t why there are korbanos as a starting point, rather, it helps explain it after the fact.

With this knowledge of the Rambam’s true approach to korbanos, we can suggest an answer to the question of why the countering of idol worship would take a similar form, rather than denigrating it, by simply eating all animals regularly, without any sacrifices at all.

Korbanos have their blood sprinkled on the Mizbeach, by a kohen, in the Beis Hamikdash. The Korban Pesach had none of these key functions, so why is it called a korban at all? R’ Moshe Shapiro explains that the key to understanding this issue is that idol worship is not nothing. Paganism and idol worship have a כח הטומאה – they usurp and corrupt spirituality. Eating an animal doesn’t battle the the negative of idol worship, it just nullifies it. The nullification does not require the Beis Hamikdash, or sprinkling of blood by the kohen.  This is why the Pesach could be brought publicly in Egypt. The Rambam in Moreh Nevuchim was saying that all korbanos have this nullifying the negative aspect to which we can relate, but we now see this isn’t the full spectrum of his opinion.

The Ramban then offers a second approach. There is an intrinsic good on man’s part in having korbanos. The idea of a korban is that a person should see the animal as being his substitute, and really, he ought to be sacrificed. The animal takes his place and atones for his sins, and this is the reason to have korbanos.

There is a mighty flaw with this approach too however. Most korbanos are donated, rather than obligated of people, so the Ramban’s approach doesn’t explain the existence of donated korbanos at all.

The Ramban offers a third solution, that is beyond the scope of this site to explain properly. The word קרבן, the root of which is the word קרב, means “closeness”. Offering a korban engenders closeness with Hashem. This is a difficult concept to explain, let alone understand, but to illustrate: we perform mitzvos to emulate Hashem’s ways, but we are not emulating Hashem by bringing korbanos – we are doing something else: we are interacting with Hashem. We are provoking a reaction in Hashem, as the pasuk says; “אשה ריח ניחוח ליהוה” – on which Rashi remarks “נחת רוח לפני, שאמרתי ונעשה רצוני”. This is difficult to illustrate, but there is a difference between doing Hashem’s will, and making it. When we bring a korban, we bring more of Hashem’s will into the world. One could suggest there is an element of creation here.

The Ramban brings a proof from Isaiah 60:7 that says: יַעֲלוּ עַל רָצוֹן מִזְבְּחִי וּבֵית תִּפְאַרְתִּי אֲפָאֵר – the Mizbeach is the expression of Hashem’s will.

So in bringing a korban, a person intentions are going to correlate to how they have extended G-d’s will in the world. This is why there is a concept of pigul, (a lengthy concept regarding what happens in the event that all the actions of a korban were carried out correctly, but someone in the porcess was thinking about something mundane, like the weather. Around 40 pages of Meseches Zevachim are devoted to this) – because the physical animal isn’t what matters – there is a transfer of spirituality here, from potential/theoretical to physical in this world. It’s a very big deal. The improper thoughts mean one can’t interact with what he’s trying to, and the korban has served it’s purpose, as the whole idea is not the physical at all.

So in answer to why we bring korbanos: there is the simple Moreh Nevuchim approach that we are counteracting paganism, the Ramban’s simple approach that we can atone our sins, and the Ramban’s esoteric Kabbalistic approach. We can suggest though, that perhaps the חוק aspect that the Rambam referred to was this third approach, and perhaps all the opinions harmonise together. Admittedly, this doesn’t answer why we bring korbanos, but it does explain what the function of the korban is.