1)
What do we learn from "va'Yasiru ha'Olah"?
1.
Malbim: They removed the Chelev and Emurim that are Olah (are burned on the Mizbe'ach, and the smoke ascends) to Hashem, and gave them to the Kohanim to put on the Mizbe'ach, and they gave the meat to Yisrael.
