2 Kings 14:6
“But the children of the murderers he slew not: according unto that which is written in the book of the law of Moses, wherein the Lord commanded, saying, The fathers shall not be put to death for the children, nor the children be put to death for the fathers; but every man shall be put to death for his own sin.”
Howbeit the high places were not taken away: as yet the people did sacrifice and burnt incense on the high places.
And it came to pass, as soon as the kingdom was confirmed in his hand, that he slew his servants which had slain the king his father.
But the children of the murderers he slew not: according unto that which is written in the book of the law of Moses, wherein the Lord commanded, saying, The fathers shall not be put to death for the children, nor the children be put to death for the fathers; but every man shall be put to death for his own sin.
He slew of Edom in the valley of salt ten thousand, and took Selah by war, and called the name of it Joktheel unto this day.
Then Amaziah sent messengers to Jehoash, the son of Jehoahaz son of Jehu, king of Israel, saying, Come, let us look one another in the face.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“The soul that sinneth, it shall die. The son shall not bear the iniquity of the father, neither shall the father bear the iniquity of the son: the righteousness of the righteous shall be upon him, and the wickedness of the wicked shall be upon him.”
“The fathers shall not be put to death for the children, neither shall the children be put to death for the fathers: every man shall be put to death for his own sin.”
“Behold, all souls are mine; as the soul of the father, so also the soul of the son is mine: the soul that sinneth, it shall die.”
“The soul that sinneth, it shall die. The son shall not bear the iniquity of the father, neither shall the father bear the iniquity of the son: the righteousness of the righteous shall be upon him, and the wickedness of the wicked shall be upon him.”
“But every one shall die for his own iniquity: every man that eateth the sour grape, his teeth shall be set on edge.”