53. The New Song

What does the "new song" of Isaiah 42 proclaim in light of Israel's blindness and the coming of the Servant?

That though the LORD has long held His peace while His servant-nation lay blind and plundered in exile, the day shall come when the Divine Warrior arises, judges idols and nations, restores Israel, and fills the ends of the earth with a new exodus song to His covenant faithfulness and redeeming power.