9 Jehoiachin was 18 years36.9 18 years: Some manuscripts of one ancient translation (see also 2 Kings 24.8); Hebrew "8 years." old when he became king of Judah, and he ruled only 3 months and 10 days from Jerusalem. Jehoiachin also disobeyed the Lord by doing evil. 10 Jr 22.24-30;24.1-10;29.1,2;Ex 17.12;Jr 37.1;Ez 17.13.In the spring of the year, King Nebuchadnezzar of Babylonia had Jehoiachin arrested and taken to Babylon, along with more of the valuable items in the temple. Then Nebuchadnezzar appointed Zedekiah king of Judah.
King Zedekiah of Judah
2 Kings 24:18-20; Jeremiah 52:1-3