Jeremiah 39:5-7 (KJV)
5 But the Chaldeans’ army pursued after them, and overtook Zedekiah in the plains of Jericho: and when they had taken him, they brought him up to Nebuchadnezzar king of Babylon to Riblah in the land of Hamath, where he gave judgment upon him.
6 Then the king of Babylon slew the sons of Zedekiah in Riblah before his eyes: also the king of Babylon slew all the nobles of Judah.
7 Moreover he put out Zedekiah’s eyes, and bound him with chains, to carry him to Babylon.
Book Of Mormon Contradiction: Helaman 6:9,10; 8:21 – Part 2
The Bible teaches that the sons of Zedekiah were slain before the king of Babylon. The Book of Mormon teaches that a son survived.