But Amaziah would not hear; for it came of God, that he might deliver them into the hand of their enemies, because they sought after the gods of Edom.
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Augustine of Hippo
AD 430
Is not sin also punishment for sin where Amaziah, king of Judah, did not wish to hear the good advice of Jehoahaz, king of Israel, not to go to war? We read, “Amaziah would not listen to him because it was the Lord’s will that he should be delivered into their hands, because they sought the god of Edom.” We can recount many other events clearly showing that from a hidden judgment of God comes perversity of heart, with the result that refusal to hear the truth leads to commission of sin, and this sin is also punishment for preceding sin. For to believe a lie and not believe the truth is indeed sin, but it comes from the blindness of heart that by a hidden but just judgment of God is also punishment for sin. - "Against Julian 5.3.12"
For the Almighty sets in motion even in the innermost hearts of people the movement of their will, so that he does through their agency whatsoever he wishes to perform through them—even he who knows not how to will anything in unrighteousness. What, again, is the purport of that which the man of God said to King Amaziah: “Let not the army of Israel go with you; for the Lord is not with Israel, even with all the children of Ephraim: for if you shall think to obtain with these, the Lord shall put you to flight before your enemies: for God has power either to strengthen or to put to flight”? Now, how does the power of God help some in war by giving them confidence and put others to flight by injecting fear into them, except it be that he who has made all things according to his own will, in heaven and on earth, also works in human hearts? We read also what Joash, king of Israel, said when he sent a message to Amaziah, king of Judah, who wanted to fight with him. After certain other words,...
It. Protestants, "it came of God, that he might deliver them into the hand of their enemies, because they sought after the gods of Edom. "(Haydock)
The king was permitted to give ear to evil counsellors. (Calmet)
"Jupiter deprives those of understanding, whom he means to destroy. "(Homer)
The heart is hardened on account of former sins. (Worthington)