Isaiah 3 describes what happens when a nation's leadership collapses. Yahweh would remove supply and support: bread, water, soldiers, judges, prophets, elders, counselors, and skilled craftsmen. In their place, inexperienced youths would rule, and society would turn against itself. The people would oppress one another, the young would act proudly against the old, and a man with clothing would be begged to take charge of the ruins.
The cause was not bad luck but rebellion: their tongue and their doings were against Yahweh. Their sin was public, paraded like Sodom. Yet the warning includes a word of hope for individuals: "Tell the righteous that it will be well with them." Their opposite is stated just as clearly: "Woe to the wicked!" for the deeds of their hands will be paid back to them.
Then Yahweh stands up to contend with the elders and princes. They had eaten up the vineyard, which Isaiah 5 identifies as God's people. "What do you mean that you crush my people, and grind the face of the poor?" God also judges the arrogant daughters of Zion, listing the many luxury items they relied on, from signet rings to fine linen. Their beauty would be replaced by sackcloth, and the city would mourn. The chapter shows that God holds leaders accountable for how they treat the weak.