The focal point of this oracle against Babylon is Israel"s security and future after this judgment. These verses summarize what Isaiah later recorded in more detail in chapters40-66. [source][source][source]
Earlier Isaiah predicted that Israel would experience defeat and captivity. After that Yahweh would have compassion on her, choose her again for blessing, as He had following the Exodus ( Exodus 19:4-6), and resettle her in her own land. Consequently many Gentiles would voluntarily attach themselves to God"s people. The Israelites would then have authority over those who formerly had authority over them (cf. 1 Samuel 17:8-9). They would take the lead domestically, militarily, and politically. [source][source][source]
A second Exodus took place when the Israelites returned from captivity in Babylon, but a third Exodus will happen in the future when they return to their land following their present worldwide dispersion (cf. Isaiah 56:6; Isaiah 60:10; Isaiah 61:5). Amillennialists interpret this as a prophecy of the inclusion of Gentiles into God"s spiritual kingdom, the church. [1][source]