1)
Which luminaries of Shamayim are discussed?
1.
Rashi: Officers above that advocate for you.
2.
Radak: They are the five stars that illuminate on the land 1 . This is a Mashal ? when affliction comes upon a person, it seems to him that the entire world is dark.
1
I.e. the five closest planets. Together with the sun and moon mentioned in the previous verse, they comprise the seven Kochevei Leket. (PF)
2)
The previous verse already said "v'Hikdarti Es Kochveihem." Why does it add here "? Akdirem Alecha"?
1.
Malbim: Their light will totally cease, even above. This is a Mashal for the final, permanent Churban in Egypt.
