What is the purpose of the oracles against the nations in Isaiah?

The oracles against the nations in Isaiah primarily serve as warnings and proclamations of God's sovereignty over all nations. These oracles highlight that God is not only the deity of Israel but also governs the fate of all other nations. By delivering messages of judgment against various countries, Isaiah underscores that these nations are accountable to Him for their actions, emphasizing His ultimate authority over the entire world.

While the oracles include themes of judgment, they also convey the hope of salvation and restoration for those who turn to God, reinforcing the idea that God's plans encompass all people, not just Israel. This aspect of the oracles illustrates God's concern for justice and righteousness across different nations, making it clear that He exercises sovereignty and control over the course of history and the destiny of nations.