2 Chronicles 33:21-23

Amon king of Judah

21 Amon was 22 years old when he began to rule. And he ruled in Jerusalem for 2 years. 22 He did all the very wrong things that his father Manasseh had done. The Lord did not like those things. And Amon gave sacrifices to all the idols that his father Manasseh had made. And he worshipped them. 23 But he did not make himself humble in front of the Lord as his father Manasseh made himself humble. Instead, Amon did even more very bad things than his father had done.

33:21Amon was king for only two years from about 642 to 640 BC.