וַיַּ֣עַשׂ אֱלֹהִ֔ים אֶת־שְׁנֵ֥י הַמְּאֹרֹ֖ת הַגְּדֹלִ֑ים אֶת־הַמָּא֤וֹר הַגָּדֹל֙ לְמֶמְשֶׁ֣לֶת הַיּ֔וֹם וְאֶת־הַמָּא֤וֹר הַקָּטֹן֙ לְמֶמְשֶׁ֣לֶת הַלַּ֔יְלָה וְאֵ֖ת הַכּוֹכָבִֽים׃
上帝造了兩個大的發光體：較大的發光體管理白晝，較小的發光體管理黑夜，又造了眾星。
Rashi
המאורות הגדולים THE GREAT LUMINARIES — They were created of equal size, but that of the moon was diminished because she complained and said, “It is impossible for two kings to make use of one crown” (Chullin 60b).
Ibn Ezra
And He made - the two were called "great" as compared to the stars. Similarly, the three [oldest] sons of Yishai were called "great/oldest" as compared to the others, while Eliav was the first-born, the oldest of all of them. It does not mean [here] that one was greater than the other, for there is a hidden meaning - the dominion of the sun in the day and not at night, for it has no light [then]. And likewise regarding the moon and starts, their light is not seen in the day. Now if one should ask, behold the astronomers have said that Jupiter and all the planets except for Mercury and Venus are larger than the moon, so how can it write "the great ones" [including the moon]? The answer is that "the great ones" does not refer to their physical measure, but rather to their light, and the light of the moon is many times greater, due to its being close to the earth, and therefore is it written "luminary".
Ramban
AND G-D MADE. 17. AND G-D SET THEM. This teaches us that these lights were not made from the body of the firmament, rather, they were bodies set into it.