All books / The Prophets
Malachi
A short book of arguments between God and his people, written as back-and-forth: God makes a charge, the people answer with a question, and God answers back. The complaints are about priests offering blind and sick animals, men divorcing the wives of their youth, and a nation holding back its tithes. It ends with a coming day that burns like an oven, and a promise to send Elijah before it arrives.
Teaching Malachi? What each passage says, claim by claim, for every chapter.