Obadiah is the shortest book in the Old Testament, consisting of only 21 verses. It is a prophecy of judgment against Edom, a nation descended from Esau, the brother of Jacob. The book is believed to have been written sometime between the 8th and 6th centuries BC.
The book begins with a declaration of the Lord's judgment against Edom. The Lord is described as having "poured out his fury" upon Edom, and the nation is warned that it will be destroyed for its pride and arrogance. The Lord is said to have remembered the violence and injustice that Edom had inflicted upon Israel, and that Edom had rejoiced in Israel's misfortune.
The Lord then declares that Edom will be punished for its sins. The nation will be destroyed and its people scattered. The Lord promises that Edom will be brought low and that its enemies will be victorious.
The book ends with a promise of hope for the future. The Lord promises that the house of Jacob will be restored and that the kingdom of Israel will be established. The Lord also promises that the people of Edom will be restored and that they will be given a place in the kingdom.
Obadiah is a powerful reminder of the Lord's justice and mercy. It is a reminder that the Lord will punish those who do evil, but that he will also show mercy to those who repent and turn to him. It is a reminder that the Lord will keep his promises and that he will restore his people.