2Chr 33:13-17

13 He prayed to him, and God received his entreaty, heard his plea, and restored him again to Jerusalem and to his kingdom. Then Manasseh knew that the Lord indeed was God. 14 Afterward he built an outer wall for the city of David west of Gihon, in the valley, reaching the entrance at the Fish Gate; he carried it around Ophel, and raised it to a very great height. He also put commanders of the army in all the fortified cities in Judah. 15 He took away the foreign gods and the idol from the house of the Lord, and all the altars that he had built on the mountain of the house of the Lord and in Jerusalem, and he threw them out of the city. 16 He also restored the altar of the Lord and offered on it sacrifices of well-being and of thanksgiving; and he commanded Judah to serve the Lord the God of Israel. 17 The people, however, still sacrificed at the high places, but only to the Lord their God.