2 Chronicles 14:6-7

6During those peaceful years, he was able to build up the fortified towns throughout Judah. No one tried to make war against him at this time, for the Lord was giving him rest from his enemies.

7Asa told the people of Judah, “Let us build towns and fortify them with walls, towers, gates, and bars. The land is still ours because we sought the Lord our God, and he has given us peace on every side.” So they went ahead with these projects and brought them to completion.