Theodora (HWV 68) is a dramatic oratorio in three acts by George Frideric Handel, set to an English libretto by Thomas Morell.
Morell's source for the libretto was The Martyrdom of Theodora and of Didymus (1687) by Robert Boyle, a prominent scientist and theologian.
First, the theme of the persecution and martyrdom of a Christian saint may have been too removed from the Old Testament narratives that Londoners had become accustomed to from Handel's dramatic oratorios.
I have heard the work three times and will venture to pronounce it as finished, beautiful and labour'd [well worked-out] a composition as ever Handel made.
[3]One of Handel's most loyal and enthusiastic supporters, Mary Delany, wrote to her sister Ann saying "Don't you remember our snug enjoyment of "Theodora?"
The original libretto included an extra scene in which Septimius converted to Christianity himself, but it was never set by Handel, though it was printed.
Didymus, a soldier secretly converted to Christianity, asks that citizens whose consciences prevent them making sacrifices to idols be spared punishment, which Valens dismisses.
Septimius suspects Didymus is a Christian and affirms his own loyalty to the law although he pities those who will be condemned to die by the decree and wishes he could be allowed to extend mercy to them.
Theodora, a nobly born Christian and her friend Irene are worshipping with their fellow believers in private rather than joining in the festival for the emperor's birthday when a messenger brings news of Valens' decree.
Septimius comes to arrest them – Theodora expects to be put to death but is informed that instead she has been sentenced to serve as a prostitute in the temple of Venus.
Didymus confesses to his friend and superior officer Septimius that he is a Christian and appeals to the other man's sense of decency.
Back at their hideout, Irene and the Christians recall the miracle of The Widow of Nain and hope that, should the lovers die, they will find a new life in heaven.
[5] The oratorio is scored for 2 sections of violins, violas, cellos, double basses, 2 flutes, 2 oboes, 2 bassoons, 1 contrabassoon, 2 horns, 2 trumpets, timpani, harpsichord, and organ.
Handel's music gives the choruses of Roman pagans, presented in the libretto as evil people gloating over the torture of Christians, "immense verve and charm".
Beginning with slow and solemn chromatic figures in a minor key, the music switches to major as the youth returns to life and ends with joy as the boy is restored to his mother.
The 1996 production by William Christie with the Orchestra of the Age of Enlightenment and the Glyndebourne Festival Chorus, produced by Peter Sellars, was described as a "landmark".