 This is the only version of the cantata of which autograph pages survive.However, these autograph fragments, which are also the only evidence of this version, ended up in three libraries in two continents – the Bibliothèque Polonaise de Paris, the Rossijskaja nacional'naja biblioteka in Saint Petersburg, and the Princeton University Library in New Jersey – and give a very incomplete picture of the version.It is not certain when Bach wrote this version of the cantata.