1)
From what should Hashem retract?
1.
Rashi: From His anger.
2)
What is the meaning of "Chaltzah Nafshi"?
1.
Rashi, Radak: Save my soul, that I will not die from this illness.
3)
Why did he say "Lema'an Chasdecha"?
1.
Radak: I do not ask due to my virtue; I know that I am liable.
2.
Malbim: If I am not worthy, save me due to Chesed.