This work, a setting of a 4th-century hymn text ascribed to St Ambrose of Milan, contrasts a plainsong style melody over the organ pedals with the rich and lyrical outpouring of larger choral sections. Although challenging in places, the subtle chromaticism and occasional lush close-harmonies create a very powerful and impressive anthem for general sacred use (the text is particularly fitting for evening use or on Trinity Sunday) but also as a striking addition to a concert programme.