Finishing off HaZorek, the chapter, and our (current) discussion of carrying on Shabbat. A reminder of the two-part requirement for "carrying" to take place, and what it means to be obligated to offer the korban. Namely, if you throw an object on Shabbat, to be required to bring a korban, you must have forgotten that it is Shabbat, or that the action is prohibition on Shabbat, for the entire time of transfer of domains, from when you throw it to when it lands. Thus, we are reminded of the complexity of the nature of this melakhah, including its effect on both time and space. Also, beginning the next chapter of the tractate, with its next complex melakhah: Boneh/building. Any amount of building will incur the requirement of bringing a korban. For something to constitute "building," it must be established in certain ways (not just placing a speck of dirt on top of another speck of dirt). And, of course, the connection to the Mishkan. Plus: there's no poverty in a place if wealth (aka, no half-measures... in the Mishkan, specifically).