And the nations will know that the house of Israel went into exile for their iniquity, because they were unfaithful to Me. So I hid My face from them and delivered them into the hands of their enemies, so that they all fell by the sword.
The nations will know that Israel went into exile for its own iniquity and unfaithfulness, so God hid His face and gave them over.
This verse explains exile as righteous judgment.
21I will display My glory among the nations, and all the nations will see the judgment that I execute and the hand that I lay upon them. 22From that day forward the house of Israel will know that I am the LORD their God. 23And the nations will know that the house of Israel went into exile for their iniquity, because they were unfaithful to Me. So I hid My face from them and delivered them into the hands of their enemies, so that they all fell by the sword. 24I dealt with them according to their uncleanness and transgressions, and I hid My face from them. 25Therefore this is what the Lord GOD says: Now I will restore Jacob from captivity and will have compassion on the whole house of Israel, and I will be jealous for My holy name. 26They will forget their disgrace and all the treachery they committed against Me, when they dwell securely in their land, with no one to frighten them. 27When I bring them back from the peoples and gather them out of the lands of their enemies, I will show My holiness in them in the sight of many nations. 28Then they will know that I am the LORD their God, when I regather them to their own land, not leaving any of them behind after their exile among the nations. 29And I will no longer hide My face from them, for I will pour out My Spirit on the house of Israel, declares the Lord GOD.”