Targum Onkelos: And they shall be for luminaries in the expanse of heaven to shine upon the earth;‑and it was so.
Rashi: And they shall be for luminaries: In addition, they will serve in this function, viz. to shed light upon the world.
Rambam: and to be luminous bodies in the realm of the spheres which shed light on the earth; and it is so forever.
Ibn Ezra: Let them become lights in the sky in the heavens to give light upon the earth.” When this was so,