What is "ve'Zeh ha'Davar" coming to include?
Torah Temimah: Which we learn from the 'Vav' in "ve'Zeh", thereby connecting it to the previous Pardshah, where they are mentioned.
Which we learn via a Gezeirah Shavah "Zeh ha'Davar" "Zeh Korban Aharon u'Vanav" from Tzav, Vayikra, 6:13.
Such as Kidush ha'Chodesh, Hafrashas T'rumos u'Ma'asros and Nedarim.
See Oznayim la'Torah, who elaborates.
Why did Hashem instruct Moshe to bring a bull as a Chatas, and not the more common goat?
Seeing as the bull came to atone for the sin of the Golden Calf, why did Aharon's sons, who did not participate in the sin, need to lean their on it?
Oznayim la'Torah: Because, even though they did not sin, they were meant to die on account of their father's sin. 1
Why does the Torah juxtapose the Parshah of Korbanos to the Bigdei Kehunah?