Halakhah su Salmi 33:78

The truth is that Scripture mentions the heavens and the earth because they form one globe, with the heavens like the circumference and the earth like the point at the center.¹³ Ibn Ezra is of the opinion that the “heavens” spoken of in Genesis refer to the lower sky, the atmosphere that is immediately above the earth. Genesis does not speak of the spheres of planets and stars that encompass the earth. See Ibn Ezra’s commentary to Genesis 1:1–2. Now the earth was covered with water from all sides, as it is written “they will not return to cover the earth” (Psalms 104:9), and the wind surrounds the waters.¹⁴ Thus the lower world consists of four spheres, each one encompassing those below it. Their order from innermost to outermost is: earth, water, air, and fire. The ancients believed that everything in the lower world, the world below the moon’s sphere, is composed of four elements – fire, air, water, and earth. This lower world is the subject of Creation in the book of Genesis. These are the four elements, namely, the heavens, earth, wind and water, for the heavens correspond to fire. Similarly we find “To make a weight for the wind and He counted the waters by measure” (Job 28:25), “For He gazes to the edges of the earth, under all the heavens He sees” (ibid. 28:24). Similarly, “Who measured the waters with his fist and counted the heavens with a span, and all the dust of the earth in a measure… who counted the wind of God” (Isaiah 40:12–13). Again, “Who ascended to the heavens and descended” (Proverbs 30:4), and the other three follow the word “heavens.”¹⁵ The verse reads: “Who ascended to the heavens and descended, who gathered wind in his fists, who bound the waters in a garment, who erected the ends of earth” (Proverbs 30:4). Here again, the four basic elements are enumerated. Also, “The sun shines” (Ecclesiastes 1:5) corresponds to the heavens, “and the earth remains forever” (ibid. 1:4), “round and round goes the wind” (ibid. 1:6), “all the rivers go to the sea” (ibid. 1:7). Since the circumference, which is the heavens, and the center, which is the earth, were created, so too all that is between them was created.

And the whole matter of these quarantines indicates His providence, blessed be He, on all the ways of man - one by one. And because the opinions are many about the providence of God upon all of his creatures, many verses in Scripture and many commandments come about it, to instruct about the matter - given that it is a cornerstone in our Torah. As there are groups of people that think that the providence of God, may He be blessed, is [individualized upon all of the species - whether people or all other animals. And there are groups that think that the providence of God, blessed be He, is] upon all the matters of the world - whether animals or all other things - meaning to say that no small thing in the world moves without His will, blessed be He, and His decree; to the point that they think regarding the falling of one leaf from a tree, [that] He decreed about it that it should fall, and [so] it is impossible that the time of its falling be even a second later or earlier. And this opinion is very removed from the intellect. And there are evil groups that think that His providence, blessed be He, is not put upon any matters of this lowly world at all - whether upon people or other animals. And this is the opinion of the heretics - it is evil and bitter. And we who have the correct opinion, according to what I have heard, place His generalized providence, blessed be He, upon all the species of animals, such that each and every species that was created in the world, survive in the world - [that] it not completely finish and be lost - as with His providence does everything find existence in the world. But with the human species, we believe that His providence, blessed be He, is upon each and every one individually, and He is 'the One who understands about all of their deeds.' And so [too,] have we received from all of our great ones; and there are also many verses that instruct that the matter is so. And therefore, the Torah warned us that when this bad illness - and that is tsaraat - reach a man, he should not take it [as being] by way of happenstance. Rather, he should immediately think that his iniquities caused [it]. And he should distance himself from the company of people, like a man who is distanced due to the evil of his deeds. And he should associate with the one who can atone - the one who can heal the fracture of the sin - and show his ailment to him. And through his counsel and through his words, and through the examination of his deeds, the ailment will be removed from him - since God, blessed be He, who constantly watches him, will see the act of his repentance and heal him. And this matter is the matter of the quarantines, as we said.

Therefore, the one who sees the moon in her renewal blesses "Blessed... is the One with Whose word They created shechakim ..." - and the firmament is here called shechakim as we say in Chagiga 12b: "[there are seven firmaments, including] shechakim, since there millstones stand and grind out manna for the righteous" [the word for grind and shechakim are similar]. Therefore Rav Yehuda, who said this statement about blessing of the moon in Sanhedrin 42a, he thinks in Chagiga 12b that there are only two firmaments, "heavens" and "the utmost heavens". And it's possible that the two are firmament and the shechakim, and his intent was: that although it's obvious that there are seven firmaments, they fall into two categories. For in the Tana"ch we find only these two names for the firmaments: firmament [רקיע] and shechakim [שחקים], and these are "heavens" [שמים] and "the utmost heavens" [שמי השמים]. And this is why it says "at Their word They created shechakim, and with the breath of Their Mouth all their hosts" -- since so says David, "at the word of God the heavens were made, and with the breath of Their Mouth all their hosts" (Psalms 33:6). And it says "A law and a time They gave to them, that they should not change their courses". The "time" is all the days if the world, six thousand years. "Being glad and rejoicing to do the will of their Creator", as it is written "[the sun] rejoices like a hero about to run a race" (Psalms 19:6). And it uses the language of "gladness and joy", like the language designated for Yisrael, as it says "Gladness and joy shall abide there, Thanksgiving and the sound of music" (Isaiah 51:3). "Doers of truth whose doings are true" -- this is the text of Rash"i, and it refers to the sun and the moon whose courses do not change. And the Tosfot render it "Doer of truth whose doings are true" and referring to the Holy Blessed One, since with truth and justice did They diminish the moon. "And to the moon They said to renew itself..." -- this is the world to come, which will be entirely renewed. And as for now, it renews itself every month. And this is a sign for Israel, who are "those borne in the womb", since so said the prophet "[the people of Israel] who are carried from the womb" (Isaiah 46:3). And one concludes the blessing "Blessed... is the One Who renews months." [מחדש חודשים]