2 Chronicles 33:18
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. 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.
This verse closes the account of Manasseh's life by pointing to a fuller record written in the book of the kings of Israel, a record that included his prayer to his God and the words of the seers who spoke to him in the name of the Lord God of Israel. Manasseh was born during the fifteen years added to Hezekiah's life and reigned fifty-five years, one of the longest reigns. His reign was one of extreme wickedness, making him one of the wickedest kings Judah ever had, wicked above all others.
Seers spoke to him in the Lord's name and a prophet was sent to him, placing him among the kings who received prophetic instruction. After he was taken prisoner by the Assyrians and carried to Babylon, he humbled himself and repented during captivity and learned to know God. God heard him, accepted him, and restored him to his kingdom, making him a marvelous instance of God's wonderful mercy.
After his restoration he did what he could to undo his former evil deeds and worked to reform the kingdom. What is called his prayer is found in the Apocrypha.