Micah says that because of the leaders’ sins, Zion will be plowed as a field and Jerusalem will become a heap of ruins. He adds that the mountain of the house will become wooded heights (Micah 3:12).
Micah announces a final verdict against Jerusalem: because of the leaders’ actions, the city’s center will be treated like ordinary farmland, the built-up city will collapse into rubble, and the temple mount will become overgrown like wooded high ground. This line closes a longer accusation against Judah’s leadership in Micah 3:9–12. Earlier in the chapter, Micah charges rulers, priests, and prophets with exploiting people and turning justice into a commodity, while still claiming that God’s presence guarantees safety.
Micah 3:12 states a verdict, not a vague warning. The verse links cause to outcome: “Therefore” connects Jerusalem’s future to what has just been condemned in Micah 3:9–11—leaders who twist justice while claiming the city is safe.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Micah 3:12, then read the surrounding section so the answer stays connected to the passage's flow.
12Therefore shall Zion for your sake be plowed as a field, and Jerusalem shall become heaps, and the mountain of the house as the high places of a forest.