In an old post, about a year ago, I suggested that Originalism with respect to constitutional interpretation is fundamentally different from an traditional approach to interpreting Halakhah. Here’s the relevant excerpt:
The Torah itself is God’s message to humanity and thus, interpreting the Torah is inextricably tied to interpreting God’s will or intention. Consider an analogy: Somebody writes you a rather vague letter. In trying to make sense of the letter itself, you’re also trying to figure out what the author had in mind while writing it. You can’t separate those two tasks.
The Constitution, on the other hand, is not simply the will of James Madison or of the members of Constitutional Convention. The relationship of Madison’s intention with the text of the Constitution is incidental.
George objects to my distinction. In a recent email (it’s actually not so recent but I procrastinated responding to him), he writes:
how is the constitution not simply the will of the cont[i]nental congress (representing the will of the nation). if it is how it that diffrent from reading and interpreting a letter a friend sent you?
The key difference between the Constitution as “the will of the [C]ont[i]nental [C]ongress” and Halakhah as God’s will is one of justification. The Torah’s authority is justified by God having commanded it. (That’s an oversimplification but I don’t want to get into the Euthyphro dilemma right now.) The goal of interpreting the Torah (and, by extension, Halakhah in general) is to identify what message God intends to convey because what justifies it is God intending to convey it. Interpreting a letter from a friend is similar insofar as the goal is to figure out what my friend wants to tell me. The letter would have no function otherwise.
The Constitution, on the other hand, does not derive its authority from James Madison or the Continental Congress. Had it been written by a 10-year-old who was bored one day during math class and then ratified by the states, it would have the same status that it has today.