Shabbos Chol HaMoed Sukkos
On the Shabbos that falls during the Intermediate Days (Chol HaMoed) of Sukkos the regular cycle of Torah readings is interrupted with a reading that reflects the theme of the holiday. Our reading this Shabbos is a section of the book of Exodus. Specifically, it is the text from divisions (aliyos) three through six of Parsha Ki Sisa, but newly divided into seven aliyos for a complete Shabbos reading.
Ki Sisa, you will remember, is when Moses comes down from Mount Sinai with the first set of tablets to find that the Jewish people had made a golden calf. Moses breaks the tablets and G-d punishes the guilty. This Shabbos’ reading begins right after that point. Toward the end of this Torah reading, G-d gives the commandments to observe the three festivals of Passover, Shavuos, and Succos and to appear in Jerusalem on those three occasions.