Everything about Manasseh is written in the records of the prophets. That includes his prayer and the fact that God felt sorry for him. It includes everything he did before he made himself low in the Lord's sight. It includes all of his sins and the fact that he wasn't faithful to the Lord. It includes the locations where he built high places. It includes the places where he set up poles that were used to worship the goddess Asherah. And it includes the places where he set up statues of other gods.