It’s a fascinating story that takes us back to the very beginnings of our people, to Jacob wrestling with a mysterious figure.

The Torah tells us, in Genesis 32:33, "Therefore, the children of Israel shall not eat the sciatic nerve, which is upon the hip socket, to this day, because he touched Jacob’s hip socket, at the sciatic nerve." But why this specific prohibition? What's the story behind the gid hanashe, the sciatic nerve?

Bereshit Rabbah, the ancient collection of rabbinic interpretations of Genesis, dives right into this question. The text asks, "Why is it called gid hanashe?" And the answer given is simple: "It is because it was dislocated [nasha] from its place." The very name of the nerve, gid hanashe, becomes a reminder of that fateful night when Jacob wrestled with a being, often understood as an angel.

So, if you're picturing a kosher butcher meticulously removing this nerve, you might wonder, how much of the surrounding area is also forbidden? Rav Huna offers an interesting perspective. He suggests that only the extensions of the sciatic nerve are technically permitted, but that "Israel is holy and they prohibited it upon themselves," taking on an additional stringency. It’s a beautiful idea – the community choosing to elevate itself by embracing a higher standard.

But the discussion doesn't end there. Rabbis Yehuda and Yosei have differing opinions on exactly how far this prohibition extends. Rabbi Yehuda argues that since the angel touched only one of the nerves, only that specific nerve should be prohibited. But Rabbi Yosei takes a stricter view, stating that since the Torah doesn’t specify which leg, both nerves are prohibited to be on the safe side.

And then it gets even more granular. Which leg was it, anyway?

Bereshit Rabbah tells us of a debate, a tanna, in which some scholars tried to deduce which leg was affected through logical reasoning. One opinion, in accordance with Rabbi Yehuda, suggests it must have been the right leg. Why? Because the Torah says "he touched his hip socket," using the possessive "his" which they interpret to mean Jacob's stronger leg – presumably his right.

But another tanna, aligning with Rabbi Yosei’s perspective, posits that it was the left leg. Their reasoning? The verse states, "Because he touched Jacob’s hip [yerekh] socket," a more general statement, implying it could have been either.

Ultimately, the tradition leans towards prohibiting the sciatic nerve from both legs. It becomes a lasting reminder of Jacob's struggle, his perseverance, and the covenant he made with God. It's a physical act that connects us to our history, to our ancestors, and to the ongoing process of wrestling with what it means to be a Jew.

So, the next time you hear about someone meticulously removing the gid hanashe, remember the story. Remember Jacob, the angel, and the enduring legacy of that night. It's a story etched not just in our texts, but also in our very bodies, in the foods we choose to eat – and not eat – connecting us to a rich and complex history.