The depth of Judah's apostasy 1:21-23

Spiritual rot had penetrated even the capital of Israel, and what marked Jerusalem characterized the whole nation. The people, seen in the personification of their capital, who had formerly been devoted to the Lord, had become unfaithful to Him by pursuing other gods. Former glories were now tarnished, and what was once strong was now weak. The leaders of the nation, who formerly had been pure and valuable, were now adulterated and cheap. Rather than serving the people, they served themselves. Idolatry had led to social injustice, as it always does unless checked.