Comentário sobre Gênesis 1:3

ויאמר אלוקים יהי אור, by means of this directive G’d meant to correct the fact that up until then everything was in complete darkness,

AND G-D SAID, ‘LET THERE BE LIGHT.’ The word “saying” here indicates Will, as in the verse, What dost thy soul say, that I should do it for thee?⁶⁵I Samuel 20:4. which means, “What do you want and desire?” Similarly, And let her be thy master’s son’s wife, as the Eternal hath spoken⁶⁶Genesis 24:51. means, “…as He hath willed, for such is the Will before Him.” Or, it may be [that the word “saying” here means] “thinking,” as in the verses, Thou sayest in thy heart;⁶⁷Isaiah 47:8. And the chiefs of Judah shall say in their heart.⁶⁸Zechariah 12:5. The purport is to state that the creation was not done with toil. Our Rabbis have also called this “thought.” Thus they have said:⁶⁹Bereshith Rabbah 12:14. “The thought [concerning what was to be created on a particular day] was during the day; the deed itself was at sunset.” This teaches that creation was thought out, that there is a reason for everything created, that creation was not a simple manifestation of mere Will alone.
The word “being” [Let there ‘be’] indicates a deed for the present time,⁷⁰Thus unlike Rashi and R’dak (Rabbi David Kimchi), who hold that the reference here is to the creation of the luminaries, such as the sun, moon, etc., which were not suspended in the firmament until the fourth day (see Rashi, Verse 14), Ramban explains that the light of the first day was of a special substance; hence Scripture does not say, And it was so, since that light did not remain forever in its original state. just as: And thou wouldst be their king⁷¹Nehemiah 6:6. [meaning: their king from this moment on]. Therefore Scripture says that when He created the substance of the heavens, He said that from that substance there should come forth a shining matter called “light.”

"Let there be light" - this is the light of the seven days [i.e., Or HaGanuz], which was for the use of those created without seed, and it will be [again] in the future, as the words of the Sages (may their memories be a blessing) Shabbat 30b: it will then be for that which is the future will "bring forth baked treats and fine clothing" without [needing] the power of seed.