Johann Sebastian Bach - Erbarme dich, mein Gott, aus der Matthäuspassion, BWV 244, Nr. 39

"Erbarme dich, mein Gott" (Have mercy, my God) is a famous aria from Johann Sebastian Bach's St. Matthew Passion, BWV 244. It is sung by Peter after he has denied Jesus three times, expressing his deep remorse and pleading for forgiveness. The aria is noted for its beautiful, sorrowful melody played by a solo violin and alto voice, creating a profoundly emotional and contemplative moment in the oratorio.