1)
How will Hashem save with His name?
1.
Radak: With Your name that I called.
2.
Malbim: Your name is that You save those who trust in You.
2)
Why did he say "uvi'Gevursecha"?
1.
Radak: That I trusted in You, and I am an individual, and they are Rabim.
2.
Malbim: You will judge against my enemies due to Your Gevurah; the salvation will be amidst Chesed.
3)
What is the meaning of "Sedineni"?
1.
Rashi: Take vengeance for me. This is like "Ki Yadin Hashem Amo" (Devarim 32:36).
2.
Radak: Wage my case against them.