An overview of the Book of Nahum and its relevance to our time. Nahum is the sequel to Jonah. Nineveh, the capital of Assyria, had repented when Jonah warned them that the Lord would destroy their city. As a result God had mercy on Assyria. But after a time, Assyria returned to her evil ways, and in 655 BC God's patience finally ran out. Through His prophet Nahum, the Lord declared that He would bring the Assyrian Empire to a final end, through the total destruction of its great capital city. Even though the Assyrian Empire was still at the height of her power, Nahum described the total destruction of Nineveh in great detail. About 40 years later in 612 BC, the prophecy was perfectly fulfilled when Nineveh was destroyed by the Medes and Babylonians.