Obadiah (“Ovadiah”) is the shortest book in the Hebrew Bible, at just 21 verses, and is the fourth of 12 books of Minor Prophets (“Trei Asar”). It focuses on the kingdom of Edom, an oppressor of Israel, criticizing the arrogance of the mountain-dwelling nation and predicting its downfall. Since Edom descends from the biblical character Esau, it is common to read Obadiah as the haftorah for parshat Vayishlach, which discusses the final encounter between Jacob and Esau.