Yet he did not put the sons of the murderers to death, but acted according to what is written in the Book of the Law of Moses, where the LORD commanded: “Fathers must not be put to death for their children, and children must not be put to death for their fathers; each is to die for his own sin.”
Amaziah, the son and successor of Joash, is the king whom here we have an account of. Let us take a view of him, I. In the temple; and there he acted, in some measure, well, like Joash, but not like David, Kg2 14:3.
Commenting on 2 Kings 14:1-7
Then Amaziah sent messengers to Jehoash the son of Jehoahaz the son of Jehu king of Israel,.... The occasion of it was this, when Amaziah dismissed the hired soldiers of Israel they were displeased, and fell upon the cities of Judea from Samaria to Bethhoron, slew 3000 men, and took much spoil, Ch2 25:13, wherefore, when Amaziah returned from the slaughter of the Edomites, being...
But the children of the murderers he slew not--This moderation, inspired by the Mosaic law (Deu 24:16), displays the good character of this prince; for the course thus pursued toward the families of the regicides was directly contrary to the prevailing customs of antiquity, according to which all connected with the criminals were doomed to unsparing destruction.