1)
Why should Hashem redeem his Nefesh?
1.
Rashi: I put my ears to "Mashal" (Divrei Torah - verse 5).
2.
Radak: The Nefesh of a Rasha perishes when he dies; Hashem will redeem my Nefesh when my body descends to the grave.
3.
Malbim: I was not drawn after physicality.
2)
How will Hashem take him?
1.
Rashi: He will take me in my lifetime to go in His way.
2.
Radak: This means when He will kill me, like "v'Einenu Ki Lakach Oso Elokim" (Bereishis 5:24).
3.
Malbim: He will redeem my spiritual Nefesh from She'ol, and take it to be bound in the bind of life with Hashem Elokei ha'Ruchos.