“It is not in heaven” (Deuteronomy 30:12)
While human beings have acquired the ability to launch rockets and people into space and explore the heavens, Deuteronomy tells us that Torah–the totality of our received tradition from God–is “lo bashamayim hi,” “it is not in heaven” (Deuteronomy 30:12). This phrase has been understood that the Torah is not an esoteric document. It is meant for human beings in this world to explore, interpret and reinterpret. This verse plays a central role in one of the most famous passages in the Talmud, Bava Metzia 59b, in which Rabbi Eliezer is in a dispute with Rabbi Joshua and the majority of sages. Rabbi Eliezer performs miracles and even has a divine voice from the heavens call out that the law is in accordance with him. Rabbi Joshua, however, says “Lo bashamayim hi,” “[The Torah] is not in heaven. God laughs in response and says, “My children have defeated me.” The Torah is meant to be studied and reinterpreted in each generation.
Rabbi Ed Bernstein 
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