The answer is: Samaria

Micah 1:5 - It was the capital cities that were the centres of evil. That's where all the corruption was. For Jacob (Israel) it was Samaria, for Judah it was Jerusalem.

In Micah's prophetic discourse, he paints a vivid picture of the moral failings of Israel, commonly symbolized through cities like Samaria and Jerusalem. These locations weren't just geographical markers; they embodied the systemic injustices and spiritual corruption pervasive in their societies. Samaria, known as the northern kingdom's capital, shines as a beacon of idolatry and immorality, while Jerusalem stands as a reflection of similar failures in the southern kingdom of Judah.

Here's where it gets particularly interesting! Micah's writing throws light on the broader theme of the "city as symbol" prevalent in ancient prophetic literature. Think about it—cities throughout the Bible often represent the face of societal woes. For instance, cities like Babylon, Sodom, and Nineveh reflect both Israel’s foes and homegrown failures, tethering immense importance to their spiritual and ethical direction.

Moreover, Micah’s messages often include an idea of hope intertwined with judgement. Despite calling out the excesses of both Samaria and Jerusalem, he ultimately points to a messianic future. This hints at God's enduring mercy amidst human failings. The heart of Micah calls people back to ethics and justice, echoing later New Testament themes where cities, including Jerusalem, become pivotal in the journey of transformative kindness. Keeping that in mind helps to appreciate how prophetic voices shape moral discourse, both in ancient times and today.