2 Chronicles 33:13-14

When he prayed to Him, He was moved by his entreaty and heard his pleading, and brought him back to Jerusalem to his kingdom. Then Manasseh knew that the LORD is God. After this he built an outer wall for the City of David on the west side of Gihon, in the river valley, to the entrance of the Fish Gate; and he encircled the Ophel with it and made it very high. Then he put military commanders in all the fortified cities of Judah.