Charles Ellicott Commentary 2 Chronicles 25:4

"But he put not their children to death, but did according to that which is written in the law in the book of Moses, as Jehovah commanded, saying, The fathers shall not die for the children, neither shall the children die for the fathers; but every man shall die for his own sin." — 2 Chronicles 25:4 (ASV)

But he slew not their children. —The verse coincides almost exactly with 2 Kings 14:6. Literally, And their sons he did not put to death; but according to what is written in the Torah, in the book of Moses, which Jehovah commanded, etc. The reference is evidently to Deuteronomy 24:16, which is more exactly repeated in Kings than here.

But every man shall die for his own sin. —Literally, But, each for (in) his own sin, they shall be put to death. Kings has the singular.