my soul. me, myself. Hebrew. nephesh. App-13.
the power of the grave. the hand of Sheol. "hand" being put by Figure of speech Metonymy (of Cause).
receive me. take me out of [Sheol]; same word as "carry away" in Psalms 49:17. Compare Psalms 50:9; Psalms 73:24; Psalms 78:70.
Selah. Connecting the fear and the folly of the hopeless man with the true hope and wisdom which takes away fear. See App-66.