The Book of Obadiah is an oracle concerning the divine judgment of Edom and the restoration of Israel.  The text consists of a single chapter divided into 21 verses making it the shortest book in the Bible.  Authorship is attributed to the prophet Obadiah who lived in the Assyrian Period and named himself in the first verse.  Dating the book is nearly impossible and is generally estimated to have been written around 840 BC.  The majority of the book pronounces judgment on the foreign nation of Edom (what is now southwestern Jordan).