For great is thy mercy toward me: and thou hast delivered my soul from the lowest hell. Thou hast delivered my soul from the lowest hell - This must mean more than the grave; a hell below hell - a place of perdition for the soul, as the grave is a place of corruption for the body.
Related Commentaries of Psalms 86:13
Psalms 86:13
13 For great is thy mercy toward me: and thou hast delivered my soul from the lowest hell.c