What does 2 Chronicles 25:4 mean?

But he didn't kill their children, because he followed what was written in the Law of Moses, where God commanded, 'Parents shouldn't be put to death for their children, and children shouldn't be put to death for their parents. Everyone dies for their own sin.' 2 Chronicles 25:4 - Modern Text Bible

(Amaziah respected God's law, refusing to punish innocent family members for someone else's crime.)