Midrash Rabbah 1:15
Rabbi Yochanan said in the name of the sages: "In terms of [the entirety of] Creation, it is clear that the heavens preceded the earth. In terms of [bringing the Creation to] completion, it is clear that the earth preceded the heavens.
Rabbi Shimon bar Yochai said: I am surprised that those Fathers of the world, Shamai and Hillel, argued over the [order of the] Creation of heaven and earth. Rather, in my opinion, they were created together like a pot and its cover, as the verse attests, "I [G‑d] call to them, and they stand up together". (Isaiah 48:13)
In the universe of Beriya, the heavens preceded the earth. For in that dimension, holiness and spirituality dominate. In the lower world of Asiya, on the other hand, the earth preceded the heavens...In terms of [the entirety of] Creation, it is clear that the heavens preceded the earth. In terms of [bringing the Creation to] completion, it is clear that the earth preceded the heavens." In Asiya, physicality is more dominant, for the entire intention of bringing the dimension of Asiya into existence was to materialize [i.e. give form to] all [the subtle levels that preceded it]. The verse [Gen. 2:4] indicates this by placing "earth" before "heaven" "Etz Chaim Genesis 1"
The Sages taught in a baraita: The basic mitzva of Hanukkah is each day to have a light kindled by a person, the head of the household, for himself and his household. And the mehadrin, i.e., those who are meticulous in the performance of mitzvot, kindle a light for each and every one in the household. And the mehadrin min hamehadrin, who are even more meticulous, adjust the number of lights daily. Beit Shammai and Beit Hillel disagree as to the nature of that adjustment. Beit Shammai say: On the first day one kindles eight lights and, from there on, gradually decreases the number of lights until, on the last day of Hanukkah, he kindles one light. And Beit Hillel say: On the first day one kindles one light, and from there on, gradually increases the number of lights until, on the last day, he kindles eight lights.
