1)
What is the meaning of "Lechem Isheh la'Hashem? Why does the Torah call the Korban "Lechem"?
1.
Rashi With reference to the Emurim 1 it means that they are the food 2 of the fire for the sake of Hashem.
2.
Moshav Zekenim (in Pasuk 3, citing R. Eliezer of Garmaiza): [The Emurim] are called 'Lechem Isheh', the main part of the Korban, just like the main part of a meal is called 'Lechem' (Shmuel 1 20:24).