The [rabbinic] concept of תורה לא בשמים היא (the Torah is not in Heaven - it's now wrested from God into the hands of the rabbis) I had previously considered to be stating that we don't have to consider what God would say to a given הלכה (Jewish law) - which helps understand why God doesn't come up much in the שלחן ערוך (a code of Jewish law) - but rather figure out for ourselves within the system that exists.
However, I realized over שבת (shabbas) that this concept extends to places where the rabbis read a Biblical text not according to its פשט (contextual understanding), as well. Whereas as one might think that one could say, "Well, the rabbis read the verse outside of its context, thus their hermeneutical program was flawed, and thus whichever הלכה they derived therefrom is duly flawed, as that was not the intent of the author/Author." However, regardless of that, the Author/author is no longer important to what the Rabbis have done with that text to figure out how to lead a good, Jewish life.
It's a double-sided sword.