The book of Micah is a Prophetic Oracle. The prophet Micah wrote it 742-686 B.C. shortly before the Northern Kingdom’s fall in 722 B.C. Key personalities are all the people of Samaria and Jerusalem.The purpose of the book of Micah was to proclaim warning and judgment to both the Northern and the Southern Kingdoms. His message was similar to that of Isaiah and was written at about the same time. Micah described the impending judgment that would eventually exile the nation.