There is a famous גזרה שווה—a linkage between two topics based on similar/exact wording—between Pesach and Sukkos known as ט''ו/ט''ו. That is, the Torah tells us that both Sukkos and Pesach occur on the 15th of their respective months. They are the only holidays in the Jewish calendar that occur on the 15th of their respective months. Moshe Rabeinu learned at Mt. Sinai that this fact links these two holidays, and we can learn details of their observance from one to the other. For example, since we must eat a chunk of matzah after nightfall on the night of Pesach, we must also eat a chunk of bread in our sukkah on the first night; that is, even if we are uncomfortable. See the gemara for more details. I can't quite put my finger on it, but this גזרה שווה just irks me. I mean, the Torah has to tell us when to celebrate the holiday, so it just doesn't fit the usual pattern on גזרה שווה for me. I have tried—with spectacular lack of success—to get anyone to even hear...
Every year we blow the shofar the entire month of Elul and suddenly stop—without warning, except for the fact that is what we did last year and all the last years for centuries—the day before Rosh HaShannah. Every year we blow the shofar on Rosh HaShannah. Some years like this one, we don't blow the shofar on the first day of Rosh HaShannah because it is Shabbos. All of this is terribly confusing to the Satan. It is so confusing to him that he can't even express his charges (all quite valid, mind you) against Klal Yisrael. I mean, he is so befuddled that he drops his whole pile of notes; so flustered that he can't put two words together; so confused that he just gives up in dejection and walks out. There is another time we confuse the Satan by not blowing the shofar, namely, when Rosh HaShannah falls on Shabbos. Nowadays, when only the first day of Rosh HaShannah can fall on Shabbos, that means that in those years, as happened this past 5787, we did not fulfill the biblical...