Oratorios are sacred operas, so they are traditionally performed in churches. However, being magnificent compositions that utilise orchestra, choir and soloists, they are performed as concert pieces as well.
Operas based on religious subjects. For example: 'Messiah' by Handel
Messiah The triumph of the time and truth He wrote 16 oratorios
The Messiah
A requiem is an example of a type of Oratorium
Especially the Messiah oratorio
Handel suffered what appears to be a stroke in 1737, paralyzing his right arm. This prompted him to make the change. During his recovery, he began to write oratorios.
Handel is said to have invented the English oratorio genre with his work "Messiah." Oratorios are large-scale musical works typically based on religious texts and performed without costumes or staging. Handel's "Messiah" remains one of the most popular and enduring oratorios in the classical music canon.
Because opera normally needs scenery and costumes- oratorios do not.
Messiah The triumph of the time and truth He wrote 16 oratorios
oratorios
Surely in the US, it is. In fact, it is probably the only oratorio that people outside of music students know about or hear performed.
The Messiah
Scenery and costumes.
Typically they are performed in theatres or community halls or such places.
Most oratorios tell stories from the Bible.
Operas, and oratorios
A requiem is an example of a type of Oratorium
Especially the Messiah oratorio