In this book you discover the theme of Joel: The day of Yahweh. You will also discover more about who one to whom the day belongs to - Yahweh. The people were facing devastating calamity and Joel calls the society to repent in order that they might escape this judgment and once again enjoy mercy and favour of Yahweh. Obadiah also focuses on the dual aspects of the theme both that there is Judgement and that blessing.