Nebuchadnezzar emptied the treasuries of both The Temple of God and the royal palace and confiscated all the gold furnishings that Solomon king of Israel had made for The Temple of God. This should have been no surprise - God had said it would happen.
And then he emptied Jerusalem of people - all its leaders and soldiers, all its craftsmen and artisans. He took them into exile, something like ten thousand of them! The only ones he left were the very poor.
He took Jehoiachin into exile to Babylon. With him he took the king's mother, his wives, his chief officers, the community leaders,
anyone who was anybody - in round numbers, seven thousand soldiers plus another thousand or so craftsmen and artisans, all herded off into exile in Babylon.
Then the king of Babylon made Jehoiachin's uncle, Mattaniah, his puppet king, but changed his name to Zedekiah.
Zedekiah was twenty-one years old when he started out as king. He was king in Jerusalem for eleven years. His mother's name was Hamutal the daughter of Jeremiah. Her hometown was Libnah.
As far as God was concerned Zedekiah was just one more evil king, a carbon copy of Jehoiakim.
The source of all this doom to Jerusalem and Judah was God's anger - God turned his back on them as an act of judgment. And then Zedekiah revolted against the king of Babylon.