G‑d agrees to Moses' request that His presence only dwell amongst the Jews. Moses requests to be shown G‑d's glory. G‑d agrees, but informs Moses that he will only be shown G‑d's "back," not G‑d's "face."
G‑d tells Moses to carve new tablets upon which G‑d will engrave the Ten Commandments. Moses takes the new tablets up to Mt. Sinai, where G‑d reveals His glory to Moses while proclaiming His Thirteen Attributes of Mercy.
G‑d seals a covenant with Moses, assuring him again that His presence will only dwell with the Jews. G‑d informs the Jewish people that He will drive the Canaanites from before them. He instructs them to destroy all vestiges of idolatry from the land, not to make molten gods, to refrain from making any covenants with its current inhabitants, to sanctify male firstborn humans and cattle, and not to cook meat together with milk.
The Jews are commanded to observe the three festivals -- including the holiday of Sukkot, "the festival of the ingathering, at the turn of the year." All males are commanded to make pilgrimage to "be seen by G‑d" during these three festivals.
The maftir, from the Book of Numbers, discusses the public offerings brought in the Temple on this day of Sukkot.