Canticle. David might compose it after his sin, though it might suit the captives, and all sinners, as well as the souls in purgatory. (Berthier)
It has long been recited in their behalf. (Worthington)
Depths of the prison of expiation, or from this vale of misery, (Berthier) captivity, (Calmet) and from the bottom of my heart. (St. Chrysostom)