The Book of Obadiah is one of the shortest books in the Bible, consisting of only one chapter with 21 verses. It is classified as a prophetic text in the Old Testament and is attributed to the prophet Obadiah. The primary focus of the book is the judgment against the nation of Edom, which is criticized for its pride and violence against the people of Israel. Obadiah's prophecy emphasizes themes of justice and retribution, highlighting that nations will be held accountable for their actions. The book also contains a message of hope for the people of Israel, promising restoration and the eventual establishment of God's kingdom.