1)
What is the meaning of "va'Yochach l'Gever Im Eloka"?
1.
Rashi: May Hashem give to me opportunity to debate with Hashem, and equate man's quarrel with his Maker to quarrels between "Adam l'Re'ehu"!
2.
Malbim: Hashem should clarify the judgment of man against Elokim, like are clarified matters Bein Adam l'Chavero. If so, surely I will be vindicated!


