How are David's eyes always on Hashem?
Radak: I always lift my eyes (hope) to Him, and not to another's help.
Malbim: He chose to abandon all worldly matters. He always looks to Hashem - to the supreme spiritual world.
What is "Reshes Raglai"?
Radak #1: It is the net of sins.
Radak #2: It is the enemies' net; they plot to trap me. He discusses other nations, the enemies of Yisrael, like it says at the end of the Mizmor. Until now discussed the Nefesh's needs; now it discusses bodily needs. Also verse 2 discussed salvation from enemies. It is also a need of the Nefesh, for if enemies distract him in war, he does not have time for needs of the Nefesh.
Malbim: Even though via always looking up, I can easily fall in a net that they spread for my feet, I will not cease from Deveikus to look at the ground. I know that even if my foot falls in a net, Hashem will take me out.
