From the Number One selling album Angel, this piece is an extract of a larger work The Angel of Mons and is adapted from the words of Psalm 130. The Angel of Mons is a choral work describing the apparition of an angel to British soldiers in the first battle of the First World War.
Out of the Depths first conveys the prayers of the wives, fiancées and mothers left at home: the angel responds with words of reassurance. Next, the soldiers themselves sing of their longing for divine assistance. The angel appears once more as the prayers of the men and women alike combine in a final climax. The piece subsides into quiet prayer asking the Lord for mercy.