Why Torah?

As they wanted to say that there is no gain in the commandment for the Holy One, blessed be He, Himself, may He be elevated; but [rather] the gain is for man himself - to prevent him from damage or a bad belief or a disgusting character trait, or to remember the miracles and wonders of the Creator, may He be blessed, and to know God. And this is [the meaning of] "to purify them" - that they should be like purified silver; as the action of a smelter is not without a reason, but [rather] to extract all the dross from it. And so [too] are the commandments to extract from our hearts every bad belief and to inform us of the truth and to always remind us of it.

(1) After these things the word of Hashem came to Abram in a vision, saying, etc. (Psalms 18:31) "As for God — His ways are perfect; the Word of Hashem is tried; a shield is He for all who take refuge in Him." If His way is perfect, how much more is He Himself! Rav said: Were not the mitzvot given so that man might be refined by them? Do you really think that The Holy One of Blessing cares if an animal is slaughtered by front or by the back of the neck? Therefore, mitzvot were only given to make humans better.

THE general object of the Law is twofold: the well-being of the soul, and the well-being of the body. The well-being of the soul is promoted by correct opinions communicated to the people according to their capacity. Some of these opinions are therefore imparted in a plain form, others allegorically: because certain opinions are in their plain form too strong for the capacity of the common people. The well-being of the body is established by a proper management of the relations in which we live one to another. This we can attain in two ways: first by removing all violence from our midst: that is to say, that we do not do every one as he pleases, desires, and is able to do; but every one of us does that which contributes towards the common welfare. Secondly, by teaching every one of us such good morals as must produce a good social state.

THERE are persons who find it difficult to give a reason for any of the commandments, and consider it right to assume that the commandments and prohibitions have no rational basis whatever... On the contrary, the sole object of the Law is to benefit us. Thus we explained the Scriptural passage, "for our good always, that He might preserve us alive, as it is this day" (Deut. 6:24). Again, "which shall hear all those statutes (ḥuḳḳim), and say, surely this great nation is a wise and understanding people" (ibid. 4:6). He thus says that even every one of these "statutes" convinces all nations of the wisdom and understanding it includes. But if no reason could be found for these statutes, if they produced no advantage and removed no evil, why then should he who believes in them and follows them be wise, reasonable, and so excellent as to raise the admiration of all nations? But the truth is undoubtedly as we have said, that every one of the six hundred and thirteen precepts serves to

1. inculcate some truth,
2. to remove some erroneous opinion,
3. to establish proper relations in society,
4. to diminish evil,
5. to train in good manners
6. or to warn against bad habits. All this depends on three things: opinions, morals, and social conduct. We do not count words, because precepts, whether positive or negative, if they relate to speech, belong to those precepts which regulate our social conduct, or to those which spread truth, or to those which teach morals. Thus these three principles suffice for assigning a reason for every one of the Divine commandments.