Why does it say "va'Ani" with the prefix Vov?
Rashi (12): When You will keep me alive and not let my enemies defeat me, I will see that You supported me in my purity.
Why did he say "b'Sumi"?
Rashi (12): You supported me in (Malbim - due to) my purity.
Radak: You found me to be clear and straight.
How did Hashem support him?
Rashi: You did not let my enemies defeat me.
Radak #1: When I was bedridden.
Radak #2: You will raise me and establish me alive and healthy. Past tense is used in place of future (this is common in Nevu'ah - Radak Yirmeyah 46:23).
What is the meaning of "va'Tatziveni Lefanecha"?
Radak: You raised me and established me alive and healthy in front of You, i.e. for Your service.
Malbim: Refer to 41:13:5:2.
What is "l'Olam"?
Radak: It is the time that was proper for me to live; I will not die prematurely.
Malbim: You established me in order that I will always be in front of You - to serve You, do Your will and always go in front of You.
