Bible Notes Online - Isaiah 66 - ESV
Commentary

v1: The greatness of God; the antidote to ritualistic religion; the building of special buildings is seen as futile. Solomon realised this, 1 Kings 8.27, and Stephen also quoted these words, Acts 7.49-50, much to the annoyance of the Jewish leaders.

v2: The repentant man is preferred before the holy place; he is accepted by God, and he learns to heed what God has said.

v3-4: The people treated the things of God badly, being undiscerning and careless, making no distinction between good and evil. The judgment of God gives the people what they really wanted; He chose their delusions, and brought their fears on them.

The Lord demands proper reverence, and a life that reflects His character. Genuine mistakes, where the attitude is sincere, are 'overlooked.' Do we choose what He delights in?

v5: True believers are persecuted by the religious; many are hated by their brethren. True believers will know the joy of their Lord, and others will be ashamed.

v6: The noise from the city as God judges His enemies, those who hated the brethren. See Obad 10-14, where Edom is judged by God for hatred of his brethren.

v7-9: The rebirth of the nation will be swift. Zion, born of God, the people of God, created and preserved by His will.

v10-11: The joy of Jerusalem, shared by those who identify with her. This is something satisfying.

v12-13: Blessings of God centred upon Jerusalem; Isaiah returns to the theme of 40.1-2; comfort has come because judgment is past. And there is blessing for all the earth because Jerusalem is blessed.

v14-16: The blessing upon Israel is linked with judgment upon His enemies. This too will demonstrate the power and righteousness of God. His hand is known to His servants. His anger is described; fury, fire, chariots, whirlwind, rebuke, flames of fire, sword; as God executes His judgment upon "all men." Indeed, many will be slain.

v17: In particular, idolaters will be judged.

v18-21: Nations brought to Jerusalem, where God's blessings fall. (The nations listed are in different directions from Judah, indicating a worldwide impact of these words.) The city will once again be the centre of God's attention in the world. Many will be gathered to seek His glory; some are sent off to declare His glory in the nations, resulting in Gentiles being brought into the city, see Rev 21.26.

A striking statement is that some from other nations will become 'priests and Levites.' Not only are Gentiles included in the blessings of God, but they become His servants, taking responsibility.

v22-24: Isaiah's final warning of judgment; the final and eternal division of mankind. God created His new heavens and new earth to be inhabited forever. Many shall worship before Him, and many shall be lost forever, enduring the eternal flame.