What does Ezra 1:3 mean?

'Anyone among you who is part of God’s people—may your God be with you—go up to Jerusalem in Judah and rebuild the Lord’s house, the God of Israel. He’s the God who lives in Jerusalem.' Ezra 1:3 - Modern Text Bible

(Cyrus is giving permission and encouragement for the Jewish exiles to return home and rebuild their place of worship. He’s acknowledging their God and blessing their journey.)