Having seen the message of judgment upon Israel and Assyria (ch. 9-10), Isaiah prophesies the glories of what is beyond the Assyrian and Babylonian assaults on Judah. God promises that a remnant shall be preserved, and that the Messianic Son of David shall reign. The promise enlarges to go beyond a vision of a restored United Kingdom of Israel to a glorious vision of the Messianic King reigning over a world-wide kingdom in a new heavens and new earth.