Amon was twenty-two years old when he began to reign, and he reigned two years in Jerusalem.
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.
Commenting on 2 Chronicles 33:21-25
Amon - reigned two years - See on Kg2 21:19 (note).
2Ch 33:21-25 The reign of Amon. Cf. 2Ki 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.
Commenting on 2 Chronicles 33:21-25