What is "b'His'atef Alai Ruchi "?
Radak: This is like "Nafsham Bahem Tis'atef" (107:5). Amidst great affliction he is crushed and bent, as if part of him is wrapped in part, and the Ru'ach [is wrapped] in the body.
Malbim: I reached the ultimate weakness; my Ru'ach is wrapped in my body, and the bodily powers are gathering to the heart.
What is the meaning of "v'Atah Yadata Nesivasi"?
Rashi: [You know] how many traps are on my path.
Radak: [You know] that I do not go on a bad path, like they do. There is no sin in me; I did not sin against them, and they pursue me.
Malbim: No person knows a path on which I can hide from my pursuers, that they will not recognize me - but You know my path!
On which path does he go?
Radak: Whatever path I go on, they spy after me and set a trap for me.
Malbim: The enemies surrounded him on all sides. He wanted to go to the east, but they set a trap for him there.