Adventus Christi is an Advent carol - "The Coming of Christ" - for eight unaccompanied voices.

The music is an arrangement of the beautiful aria O Lord, whose mercies numberless in Handel's oratorio Saul (1739), which David sings in an attempt to calm Saul's rage. Handel's violin parts are here translated into a throbbing vocal accompaniment sung to the Latin words Ecce veniet Emmanuel (Behold, Emmanuel shall come), whilst the English text is passed around amongst the other voices. The words mirror the rise and fall of the melody, and lush, spacious harmonies in the final bars draw the carol to a quiet close.