Okay, kiddo, so in the book called the Bible, there is a part called 2 Chronicles 36. This part talks about the kings of Judah, which is a place where Jewish people used to live a long time ago.
It tells us about how the kings were not always good and how they sometimes did things that made God unhappy. When this happened, bad things would happen to them and the people they were ruling over.
Eventually, the Babylonians came and took over Judah, and the Jews had to leave their homes and go to a place called Babylon. This was a sad time for the Jewish people because they had to leave everything they knew behind.
But, the book also tells us that God still loved the Jewish people, and that he promised to bring them back to their homeland one day. That's basically what 2 Chronicles 36 is all about!