Why does it say "Ki Elecha
Rashi: This refers to above (3-4) "Shisah
What is the meaning of "Al Te'ar Nafshi"?
Rashi: My Nefesh should not be sent from in front of You. This is like "va'Te'ar Kadah El ha'Shokes" (Bereishis 24:20).
Radak: This is being spilled and poured, like "va'Te'ar Kadah El ha'Shokes." When the Nefesh leaves the body, it is as if it is spilled from it - "va'Eshpoch Es Nafshi 1 Lifnei Hashem" (Shmuel I, 1:15).
Malbim: Even though [based on nature, when we jump from the mountain - refer to 141:7:3:2] our bones should scatter, as if the land under us cleaved, since I trusted in Hashem, my Nafshi will not be removed from my body, even though our bones will scatter. This shows their awesome trust in Hashem!
Chanah did not die then! Perhaps Radak merely proves that 'spilling' applies to the Nefesh. (PF)