As the translator notes, this collection should more properly titled 'the Pseudo-Sibylline Oracles'. The original Sibylline Books were closely-guarded oracular scrolls written by prophetic priestesses (the Sibylls) in the Etruscan and early Roman Era as far back as the 6th Century B.C.E. These books were destroyed, partially in a fire in 83 B.C.E., and finally burned by order of the Roman General Flavius Stilicho (365-408 C.E.).
As prophecy, the Pseudo-Sibyllines never rise to the level of Nostradamus. However they are a gold mine for students of Classical mythology and early first millenium Jewish, Gnostic and Christian beliefs. Notable are apocalyptic passages scattered throughout which at times seem like a first draft of the Biblical Book of Revelation. The Pseudo-Sibyllines were referenced by the early Church fathers and in one instance have a Christian code-phrase in successive first letters on each line (an 'acrostic'). These books, in spite of their Pagan content, have been described as part of the Apocrypha, although they do not appear on any of the canonical lists.
Continue for the texts...