What does the Bible say about victory in spiritual battles?

The Bible emphasizes that true victory is achieved not by our own strength but through obedience to God's commands and His divine intervention. In the story of Joshua and the battle of Ai, we see Israel initially failing due to disobedience. However, after atoning for their sins, they were instructed by God to take decisive action, which led to a miraculous victory. This narrative highlights that God gives victories to His people as a demonstration of His power and favor, reminding believers that their battles are won through reliance on God and not their own might.