1. Zion will be redeemed (1:24-31)

The Lord would thoroughly cleanse his people. His justice against sin is also his work of restoration. The Lord would make the city that had become a harlot to once again be called the City of Righteousness, the Faithful City. He redeems the penitent with justice and righteousness; those who forsake the Lord and reject him will perish in their rebellion and sin.

2. All nations will stream to it (2:1-4)

Israel was weak and surrounded by enemies. But Isaiah saw with prophetic vision. He saw the day when the mountain of the Lord would be raised up, when the word of the Lord would go out from Jerusalem to all nations. At that time many peoples will come to God to live in his judgment. They will no longer fight each other; they will all be taught by the Lord.