It is attributed to the biblical figure Baruch ben Neriah (c. 6th century BC) and so is associated with the Old Testament, but not regarded as scripture by Jews or by most Christian groups.
The Letter of Baruch had a separate and wider circulation than the rest of the book, and is attested in thirty-six Syriac manuscripts.
[3] The full text of 2 Baruch is now known from a 6th or 7th century CE Syriac manuscript discovered by Antonio Ceriani in the Biblioteca Ambrosiana in Milan in 1866.
This Apocalypse of Baruch deals in part with the same problems, the sufferings of the theocratic people, and their ultimate triumph over their oppressors.
Its Messianism, in general, is earthly, but in the latter part of the book the Messiah's realm tends unmistakably towards a more spiritual conception.
According to the text, the Temple's sacred objects were rescued from destruction under the protection of angels, to be returned during the restoration prophesied in the Book of Jeremiah.