www.douglasfloyd.com/bible-studies/the-ezra-nehemiah-saga
Here is an introduction to notes on the books of Ezra & Nehemiah. I am looking at these books at the beginning of a new world for Israel. All their symbols are changing after the exile. These books reveal a pattern in Scripture of creating a new world (new heavens and earth) after the destruction of an old world.

Ezra 1:1