1)
Whom should Hashem awaken?
1.
Rashi: The Heavenly legions, to judge my case against my enemies.
2.
Radak: He Himself should not continue to be like one who sleeps.
3.
Malbim: They say [Sheker] in the name of the dead - awaken them from their graves for my case, to testify the truth!
2)
Why does it say "Ha'irah v'Hakitzah"?
1.
Radak: The matter is repeated to strengthen the matter.
3)
Why did he say "Elokai va'Shem"?
1.
Radak: You are Elokai - I have no other judge; You are my Master - a master demands justice for his slave.
2.
Malbim: Corresponding to what they say that they themselves saw, You, Elokai va'Shem, wage my quarrel against false witnesses.