Obadiah, containing only one chapter, is the shortest book in the Old Testament. In it is given a prophetic interpretation of a great calamity that has already occurred in Edom and a prediction of a universal judgment.

Obadiah 1

1:7 All the men of thy confederacy have brought thee even to the border: the men that were at peace with thee have deceived thee, and prevailed against thee; they that eat thy bread have laid a wound under thee: there is none understanding in him.