A pagan philosopher once came to Rabban Gamliel with a question designed to embarrass him: "Your God claims to be the ruler of all creation, the master of the heavens and the earth. So why did He choose to reveal Himself to Moses in a lowly thornbush?"
The philosopher expected Rabban Gamliel to be flustered. A burning bush was hardly the throne room of a supreme deity. Surely a mountain peak, a bolt of lightning, or the roaring sea would have been more fitting for the Creator of the universe.
Rabban Gamliel answered without hesitation. "God revealed Himself in the bush," he said, "to teach you that there is no place on earth that is empty of the Divine Presence—not even a thornbush."
The Midrash (rabbinic interpretive commentary) in Exodus Rabbah (chapter 2) and Numbers Rabbah (chapter 12) both preserve this exchange, and the Song of Songs Rabbah (chapter 3) elaborates further. The thornbush was not chosen despite its lowliness, but because of it. God does not dwell only in palaces and temples. He is present in the humble places, the overlooked corners, the spaces that others consider beneath their notice.
There is another layer to the teaching. The thornbush burns but is not consumed (Exodus 3:2). Just as the bush endured the fire, so too would Israel endure the furnace of Egyptian slavery. The lowly bush was a mirror of the enslaved nation—small, thorny, seemingly worthless—yet chosen by God precisely because greatness was hidden within it. The philosopher, expecting a debate, received a theology lesson he never forgot.