2 Chronicles 33:13-14

When he prayed to Him, He was moved by his entreaty and heard his supplication, and brought him again to Jerusalem to his kingdom. Then Manasseh knew that the LORD was God. Now after this he built the outer wall of the city of David on the west side of Gihon, in the valley, even to the entrance of the Fish Gate; and he encircled the Ophel with it and made it very high. Then he put army commanders in all the fortified cities of Judah.