This is "Christus" (Opus 97, 1847) by Felix Mendelssohn-Bartholdy (1809 - 1847) performed by The Monteverdi Choir Würzburg.
"Christus" is the title given by the composer's brother Paul to fragments of an unfinished oratorio by Felix Mendelssohn. The work was suggested by Christian Karl Josias von Bunsen, who compiled the German libretto from biblical sources. Composition began in 1846 and continued through Mendelssohn's last year. The completed portions include a tenor recitative relating Christ's birth, a TBB chorus "Where is the newborn", the well known SATB chorus "There Shall a Star from Jacob Shine Forth" using Philipp Nicolai's chorale "Wie schön leuchtet der Morgenstern", and a passion section ending with another chorale, Paul Gerhardt's "O Welt, sieh hier dein Leben". The first performance took place in 1852.
The Monteverdi Choir Würzburg is made up of more 100 talented students and alumni of the University of Würzburg and the University of Music Würzburg. Since 1998, this successful and renowned choir has been directed by Matthias Beckert, conductor and lecturer in choral conducting at the University of Music Würzburg. Based on its top-class choral performances, the Monteverdi Choir Würzburg has been highly praised both in professional circles and by the media.