As Thomaskantor Johann Sebastian Bach provided Passion music for Good Friday services in Leipzig. The extant St Matthew Passion and St John Passion are the best known Passion oratorios composed by Bach.
According to his "Nekrolog", the 1754 obituary written by Johann Friedrich Agricola and the composer's son Carl Philipp Emanuel, Bach wrote "five Passions, of which one is for double chorus". The double chorus one is easily identified as the St Matthew Passion. The St John Passion is the only extant other one that is certainly composed by Bach. The libretto of the St Mark Passion was published in Bach's time, allowing reconstruction based on the pieces Bach is known to have parodied for its composition, while the extant St Luke Passion likely contains little or no music composed by Bach. Which Bach compositions, apart from the known ones, may have been meant in the obituary remains uncertain.
The St John Passion is shorter and has simpler orchestration than the St Matthew Passion. The St John Passion has been described as more realistic, faster paced and more anguished than the reflective and resigned St. Matthew Passion.
The St John Passion, BWV 245 is the first Passion Bach composed during his tenure as Thomaskantor in Leipzig, a tenure that started after the Easter season of 1723. Apart from the German translation of parts of the Gospel of St John and several Lutheran chorales, it used text of the Brockes Passion for its arias. The Passion was performed on Good Friday of 1724, 1725, 1732 and 1749.