Peter Pett's Commentary on the Bible
Isaiah 66 - Introduction
Chapter 66 The Final Triumph.
The book ends where it began in facing men up to Yahweh, and denouncing their formality in religious ritual. We note that like the first five Chapter s all the emphasis is now on Yahweh. The coming King, the coming Servant, the coming Redeemer, The One through Whom Yahweh will do His work, has been described in different ways in the main part of the book, but now the main focus is back again on Yahweh alone as at the beginning.
The chapter summarises many themes of the book as it leads up to the final triumph of Yahweh. Warnings against formality and inclusivity in worship, the coming of the divine King, deliverance for His own, the establishment of the new Jerusalem, the judgment of the unrighteous, the condemnation of Canaanite religion, the gathering of the Gentiles, the return of the exiles, the new heavens and the new earth and the universal worship of Yahweh Who reigns over all, both the living and the dead.