Why shouldn't Hashem kill them?
Rashi: The vengeance would not be recognized.
Malbim: David meant, when I flee from the window, I should not need to fight and kill the guards looking for me.
Why would Yisrael forget?
Rashi: All who die are forgotten.
Radak: If He kills them quickly, the vengeance will be forgotten.
Malbim: [If I need to kill the guards,] perhaps Yisrael will forget what they did to me.
Why did he request "Hani'emo v'Cheilecha v'Horidemo"?
Rashi: Remove them from their property, and they will be poor. This vengeance will be remembered a long time.
Radak: The vengeance should be protracted. Remove their wealth and force them to request (beg for) food from Cheilecha, i.e. Yisrael, Hashem's nation and legion.
Malbim: Relocate them so they will not see me flee, and after demote them from their grandeur.
Why did he say "Maginenu"?
Radak: You are a shield to me and the pursued of my nation. Show us this vengeance against them!
