She Defiled Herself With Immorality

When each of us dies we are judged by God. Our judgment comes after our physical life ends. For nations judgment comes while that nation exists. God is patient. Judgment and the results of judgment do not come with haste, giving the citizens of that nation plenty of time to repent and turn to God. What causes God's judgment on a nation? This is why Jerusalem (the nation of Judah) was judged and destroyed:

"She defiled herself with immorality with no thought of the punishment that would follow." - Lamentations 1:9

The city of Jerusalem speaks saying, "He [God] wove my sins into ropes to hitch me to a yoke of captivity." - Lamentations