| Clarke's Commentary on the Bible Amon - reigned two years - See on 2 Kings 21:19 (note).
Keil and Delitzsch Biblical Commentary on the Old TestamentThe reign of Amon. Cf. 2 Kings 21:19-26. - Both accounts agree; only in the Chronicle, as is also the case with Manasseh and Ahaz, the name of his mother is omitted, and the description of his godless deeds is somewhat more brief than in Kings, while the remark is added that he did not humble himself like Manasseh, but increased the guilt. In the account of his death there is nothing said of his funeral, nor is there any reference to the sources of his history. See the commentary on 2 Kings 21:19.
Geneva Study BibleAmon was two and twenty years old when he began to reign, and reigned two years in Jerusalem.
Matthew Henry's Concise Commentary33:21-25 Amon's father did ill, but he did worse. Whatever warnings or convictions he had, he never humbled himself. He was soon cut off in his sins, and made a warning for all men not to abuse the example of God's patience and mercy to Manasseh, as an encouragement to continue in sin. May God help us to be honest to ourselves, and to think aright respecting our own character, before death fixes us in an unchangeable state.
Matthew Henry's Whole Bible CommentaryVerses 21-25 We have little recorded concerning Amon, but enough unless it were better. Here is, I. His great wickedness. He did as Manasseh had done in the days of his apostasy, v. 22. Those who think this an evidence that Manasseh did not truly repent forget how many good kings had wicked sons. Only it should seem that Manasseh was in this defective, that, when he cast out the images, he did not utterly deface and destroy them, according to the law which required Israel to burn the images with fire, Deu. 7:2. How necessary that law was this instance shows; for the carved images being only thrown by, and not burnt, Amon knew where to find them, soon set them up, and sacrificed to them. It is added, to represent him exceedingly sinful and to justify God in cutting him off so soon, 1. That he out-did his father in sinning: He trespassed more and more, v. 23. His father did ill, but he did worse. Those that were joined to idols grew more and more mad upon them. 2. That he came short of his father in repenting: He humbled not himself before the Lord, as his father had humbled himself. He fell like him, but did not get up again like him. It is not so much sin as impenitence in sin that ruins men, not so much that they offend as that they do not humble themselves for their offences, not the disease, but the neglect of the remedy. II. His speedy destruction. He reigned but two years and then his servants conspired against him and slew him, v. 24. Perhaps when Amon sinned as his father did in the beginning of his days he promised himself that he should repent as his father did in the latter end of his days. But his case shows what a madness it is to presume upon that. If he hoped to repent when he was old, he was wretchedly disappointed; for he was cut off when he was young. He rebelled against God, and his own servants rebelled against him. Herein God was righteous, but they were wicked, and justly did the people of the land put them to death as traitors. The lives of kings are particularly under the protection of Providence and the laws both of God and man. | 
