1)
Why does it say "Ki Hekim"?
1.
Rashi: This is present tense. When Hashem established a Shofet, and Hashem was with him....
2)
What is the meaning of "Ki Yinachem"?
1.
Rashi, citing Targum Yonasan: [Hashem] would retract [from the affliction].
3)
What is the meaning of "mi'Na'akasam"?
1.
Rashi: It is due to their cries 1 .
2.
Seforno (Shemos 2:24): It is their prayer.
1
Rashi (Shemos 2:24) explicitly said so; it seems that also here, he explains so. (PF)
4)
What is the difference between Lochatzeihem and Dochakeihem?
1.
Malbim: A Lochetz demands taxes and servitude. A Dochek comes in the place [of his victim], and then he is cramped.