Charles Spurgeon Commentary 2 Chronicles 33:18-19

"Now the rest of the acts of Manasseh, and his prayer unto his God, and the words of the seers that spake to him in the name of Jehovah, the God of Israel, behold, they are written among the acts of the kings of Israel. His prayer also, and how [God] was entreated of him, and all his sin and his trespass, and the places wherein he built high places, and set up the Asherim and the graven images, before he humbled himself: behold, they are written in the history of Hozai." — 2 Chronicles 33:18-19 (ASV)

Now the rest of the acts of Manasseh, and his prayer unto his God, and the words of the seers that spake to him in the name of the LORD God of Israel, behold, they are written in the book of the kings of Israel. His prayer also, and how God was entreated of him, and all his sins, and his trespass, and the places wherein he built high places, and set up groves and graven images, before he was humbled; behold, they are written among the sayings of the seers.

So we must remember that all the deeds that we have done, both good and evil, are written in God's Book of Remembrance.