Okay, so imagine that there was a king a long time ago named Jehoiachin. He was the king of a country called Judah. But one day, some bad people came and took Jehoiachin and his people away from their country and made them go to another country called Babylon.
Jehoiachin had a really hard time in Babylon because he wasn't the king anymore and he was basically a prisoner. But eventually, the king of Babylon felt sorry for him and let him out of prison. Jehoiachin was still not allowed to go back to his own country though, so he lived in Babylon for many years.
After a while, a new king came to power in Babylon and he was nicer to Jehoiachin. He even let him have some special privileges and treated him with respect. So even though Jehoiachin had a tough life, he was able to find some happiness in Babylon.
And that's the story of Jehoiachin, a king who went through some tough times but was able to find some happiness in the end.