Jephtas Gelübde (The vow of Jephthah) was the first opera composed by Giacomo Meyerbeer.
The libretto, which is elaborated from the biblical story of Jephthah, was by Aloys Schreiber [de].
During his revision of the score in June and July, Meyerbeer had already begun writing his second opera, Wirth und Gast.
"Deliberate and accidental hindrances of every sort intruded, and even on 20 December I was not certain whether the opera would be given in the 23rd.
"[1] In the event there were three performances, and the opera was fairly successful with many numbers applauded, although the composer thought that Lanius, as Jephta, "played very mediocrely".