Musar su Geremia 33:23

And the world endures only through Torah, as it is written (Jeremiah 33:25): "If not for My covenant, day and night, the statutes of heaven and earth I would not have ordained." And this is the language of the holy Zohar, Parshath Bereshith 47a: "Everyone who occupies himself with Torah every day will merit having a share in the world to come, and it will be accounted to him as if he had built worlds. For it was through Torah that the world was built and fashioned, as it is written (Mishlei 3:19): 'The L-rd, through wisdom [Torah] founded the earth, etc.' And everyone who occupies himself with it shapes the worlds and sustains them. And come and see: It was with a spirit that the Holy One Blessed be He made the world, and it is with a spirit that it endures, the spirit of those who toil in Torah." And this is the language of Parshath Tzav: " R. Elazar opened and said: (Isaiah 51:16): 'And I have placed My words in your mouth, and with the shadow of My hand have I covered you, etc.' From here we learn that if a man occupies himself with words of Torah and his lips murmur Torah, the Holy One Blessed be He hovers over him and the Shechinah spreads its wings over him. What is more, he causes the world to endure and the Holy One Blessed be He rejoices with him as if the heavens and the earth were planted on that day."

Now that it has been made clear that our intent is to further the service of the Creator, blessed be He, for because of that the world was created, we say that the service of God is an obligation upon us to fulfill, both from Scripture and from reason. From Scripture, we learn that the Creator, blessed be He, created the world for no other reason than for the Torah, as it is said (Jeremiah 33:25), “If My covenant be not with day and night, if I have not appointed the ordinances of heaven and earth.” And it says further (Proverbs 3:19), “The Lord by wisdom founded the earth; by understanding He established the heavens.” And it says further (Proverbs 8:22), “The Lord made me the beginning of His way, the first of His works of old.” We can say that the service of God is an obligation upon us, for the Creator gave the Torah to Israel at Mount Sinai, only as the means to serve Him, as it is said (Exodus 20:17), “God is come to prove you, and that His fear may be before you, that ye sin not.” And it is written (ibid., 3:12), “When thou hast brought forth the people out of Egypt, ye shall serve God upon this mountain.” And it is said (Deuteronomy 6:13), “Thou shalt fear the Lord thy God; and Him shalt thou serve.” Scripture placed “fear” before “service” to teach that if there is no fear there can be no serving of God. Thus it is said (ibid., 10:12), “And now, Israel, what doth the Lord thy God require of thee, but to fear the Lord thy God… .” Now that we know that the world was created only for the sake of the Torah, we also know that the world was created for no other purpose than the service of God. As long as service to God and righteousness stand, the world will stand upon them. As it is said (Proverbs 10:25), “But the righteous is an everlasting foundation.” Since it has been explained that the service of God is what we are obligated to do according to Scripture, we will now explain how it is derived by way of reason. We will say that it is well known that with regard to a mortal king, his kingdom is not firmly established except by the faithful service of his servants. If his servants do not serve him or fear him, then he has no sway over them, and there is no way in which his authority over them can be known. We see that such a king rewards his servants according to their service and their fear of him. If a king of flesh and blood must show his dominion and authority over his servants who are creatures such as he, and who may even be better than he, how much more is it fitting that the dominion of the Creator, blessed be He, should be apparent from our fear of Him. In what way can it be known that He is our Creator and we His servants, and that He endures forever, while we are transitory? How can we make all of this known except by doing His will and by our fear of Him? In this way, we will know what we are and what our lives are.

Rabbi Akiba said, "Seven things were created before the Universe and they are these : Torah, Repentance, Paradise, Gehennah, the Throne of Glory, the Temple, and the name of the Messiah" (Pesahim 54a). And why these seven? Know this, that the principal reason for the creation of the world is man, for there is no need for the lower world except for man, and he rules over all the lower world : over the cattle, the beasts, the fowl, the fish and the swarming things. And inasmuch as the principal reason for creation is man it was necessary first to create the Torah, which is the very existence of the world. As it is written, "If My covenant be not with day and night, if I have not appointed the ordinances of heaven and earth" (Jer. 33:25).