Before revision: It was used as a name for the Vespers in the Office of the Dead, taken from its incipit, a quote from the Vulgate's Psalm 116:9 , , "[I] shall please the Lord in the land of the living".
After revision: (Psalm 114:9 in modern bibles)It was used as a name for the Vespers in the Office of the Dead, taken from its incipit, a quote from the Vulgate's Psalm 116:9 , , "[I] shall please the Lord in the land of the living".