He did what was evil in the sight of the Lord, according to the abominable practices of the nations whom the Lord drove out before the people of Israel.
For he rebuilt the high places that his father Hezekiah had pulled down, and erected altars to the Baals, made sacred poles, worshiped all the host of heaven, and served them.
References for 2 Chronicles 33:3
He built altars in the house of the Lord, of which the Lord had said, "In Jerusalem shall my name be forever."
He built altars for all the host of heaven in the two courts of the house of the Lord.
He made his son pass through fire in the valley of the son of Hinnom, practiced soothsaying and augury and sorcery, and dealt with mediums and with wizards. He did much evil in the sight of the Lord, provoking him to anger.
The carved image of the idol that he had made he set in the house of God, of which God said to David and to his son Solomon, "In this house, and in Jerusalem, which I have chosen out of all the tribes of Israel, I will put my name forever;
I will never again remove the feet of Israel from the land that I appointed for your ancestors, if only they will be careful to do all that I have commanded them, all the law, the statutes, and the ordinances given through Moses."
Manasseh misled Judah and the inhabitants of Jerusalem, so that they did more evil than the nations whom the Lord had destroyed before the people of Israel.
The Lord spoke to Manasseh and to his people, but they gave no heed.
Therefore the Lord brought against them the commanders of the army of the king of Assyria, who took Manasseh captive in manacles, bound him with fetters, and brought him to Babylon.
While he was in distress he entreated the favor of the Lord his God and humbled himself greatly before the God of his ancestors.