Why does the Torah write specifically "Shok ha'Terumah" and "Chazeh ha'Tenufah"?
Moshav Zekenim: The Shok is called Terumah, because Moshe raised and offered the thigh of the Shelamim ram (8:25,28).
Ramban: Because the Shok was separated to give to Hashem together with the bread and the Chalavim, it is called Terumah (l above, 7:14); 1 whereas the Chazeh differed from the Basar only by virtue of the Tenufah, which rendered it Kadosh to be given to Moshe.
Ramban: And since the Kohanim merited c7 of Shelamim from now and onwards, it always says Shok ha'Terumah and Chazeh ha'Tenufah, even though also the chest is waved.
What is the meaning of "Al Ishei ha'Chalavim"?
Rashi: The words need to be inverted, as if it had written "Al Chelvei ha'Ishim". It teaches that when waving, the Chalavim are below.
Ramban: "Ishei" is in fact, a description of the Chalavim. 1
When they brought all the parts for waving, (See 7:30), the Chalavim were on top. Why, when they performed the Tenufah, were the Shok and the Chazeh on top?
Rashi: Refer to 7:30:2:1.
Ramban: Although the switch is automatically understood from the Pasuk, the Pasuk is not coming to teach us that. It is coming to teach us that the Shok and the Chazeh were given to the Kohanim because the waving sanctified them.
Why does the Torah repeat the fact that the Shok and the Chazeh are given to the Kohanim?
Ramban: It teaches that the Shok and the Chazeh were given to the Kohanim because the waving sanctified them.
Seforno: It is mentionedit here after they had performed the waving, to teach that Kohanim receive the Shok and the Chazeh after the waving has been performed. 1
From the Table of Hashem ('mi'Shulchan Gavohah ka'Zachu' [Seforno]).