Matthew Henry Commentary 2 Chronicles 33:21-25

"Amon was twenty and two years old when he began to reign; and he reigned two years in Jerusalem. And he did that which was evil in the sight of Jehovah, as did Manasseh his father; and Amon sacrificed unto all the graven images which Manasseh his father had made, and served them. And he humbled not himself before Jehovah, as Manasseh his father had humbled himself; but this same Amon trespassed more and more. And his servants conspired against him, and put him to death in his own house. But the people of the land slew all them that had conspired against king Amon; and the people of the land made Josiah his son king in his stead." — 2 Chronicles 33:21-25 (ASV)

Amon's father did evil, 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 people 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 with ourselves, and to think rightly concerning our own character, before death fixes us in an unchangeable state.