Commento su Genesi 2:1
וַיְכֻלּ֛וּ הַשָּׁמַ֥יִם וְהָאָ֖רֶץ וְכָל־צְבָאָֽם׃
Furono così compiuti il cielo e la terra, e tutto l’esercito loro [ciò ch’è in essi].
Ramban on Genesis
AND ALL THE HOST OF THEM. “The host of the earth” are those which have been mentioned: beasts, creeping things, fish, and all growing things, and also man. “The host of the heavens” are the two luminaries and the stars, mentioned above, just as it is written: And lest thou lift up thine eyes unto heaven, and when thou seest the sun and the moon and the stars, even all the host of heaven.236Deuteronomy 4:19. It also includes the Separate Intelligences,237Intelligences without matter, generally referring to the angels and spheres. See Rambam, Hilchoth Yesodei Hatorah 3:9. Also Moreh Nebuchim, I, 49: “The angels are likewise incorporeal; they are intelligences without matter, etc.” (Friedlander’s translation.) just as it is written: I saw the Eternal sitting on His throne, and all the host of heaven standing by Him;238I Kings 22:19. also, The Eternal will punish the host of the high heaven on high.239Isaiah 24:21. It is here [in the expression, all the host of them], that He has hinted at the formation of the angels in the work of creation. Similarly, the souls of men are included in the host of heaven.240Ramban is thus inferring that the souls of all men of all generations were created at the beginning of creation. This thought is clearly expressed in the other writings of Ramban. (See Ramban’s letter to Rabbeinu Yonah, Kithvei Haramban, Vol. I, 383. See also in same volume his Commentary to Job 38:21, p. 117).
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Sforno on Genesis
ויכלו, when all the phenomena intended to comprise the physical universe had materialised
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Or HaChaim on Genesis
ויכלו השמים והארץ. Heaven and earth were completed. We are not sure what this verse is meant to teach us. It appears that we must understand it in the context of the saying of our sages that G'd is the מקומו של עולם, G'd is the place of His universe (and not vice versa). We also find statements to the effect that G'd fills the universe, such as Isaiah 6,3: "The whole earth if full of His glory." G'd's light surrounds the entire globe and it fills the globe itself. We need to understand why G'd has arranged things in this manner. I have heard from Torah scholars (who were my teachers) that the reason G'd made the earth spherical is to enable its various parts to endure with equal ease. The rabbis meant that of all the desires, urges and feelings of love in the universe nothing matches in intensity the urge of the spirit which has recognised the light of G'd and its desire to cleave to G'd's light. Every living soul which has been fortunate enough to recognise even a small amount of that light longs to behold visions of the pleasantness that is G'd. Know that G'd has endowed each category of His creatures with a two-tiered intelligence. One tier is the power to perceive, the other tier is the power to analyse. Human beings, i.e. creatures who are endowed with the power of speech, as well as all lower forms of life or even the inert part of nature, all received a degree of intelligence commensurate with their status in the universe which enables them to recognise their Creator. By means of this intelligence we know that the globe continues to exist without faltering. G'd has revealed some of this secret to those who revere Him and by means of these explanations these facts became translated to our senses [as opposed to merely abstract intelligence. Ed.] The force holding up the globe is G'd's beautiful and all-embracing light which surrounds the globe in equal measure. Every section of the revolving earth derives additional strength from the power of the fiery urge that burns within it urging it to cling to the manifestations of G'd's spirit. This is why the globe remains in its position in the universe. [I have abbreviated the author's treatise on what he terms spiritual motivations for keeping "earth on track." I have no way of knowing if the author was familiar with Newton's theories about centrifugal forces, gravitation, etc. Even assuming that he had heard of them, the chances are he would have preferred to account for these movements as having been inspired at least also by spiritual considerations rather than as being merely laws of physics. According to the author the reason for the Torah telling us something at this stage which seemed obvious is to explain the fact that spherical earth which is not propped up by a visible force could remain in place throughout the millenia. We are dealing then with gravitation, etc. as a spiritual force. Ed.]
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