Asa succeeds his father Abijah as king of Judah. During Asa's reign, the land had peace for ten years. Asa removed idols and idolatrous worship, commanding the people to worship the Lord. He destroyed foreign altars, high places, pillars and Asherim idols. Asa also strengthened defenses by building fortified cities. When threatened by an enormous Ethiopian army led by Zerah, Asa prayed to the Lord for help and was given victory over the Ethiopians, securing further peace during his reign.