What does the Bible say about courage in facing giants?

In the Bible, David's conquest over Goliath is a classic example demonstrating that courage is not rooted in human strength but in faith in God. In 1 Samuel 17, David faced the giant Goliath, who instilled fear in the entire Israelite army. Unlike King Saul, who had been empowered by God but succumbed to fear when the Spirit left him, David relied on his faith. He declared to Goliath in verse 45, 'I come to thee in the name of the Lord of hosts.' This emphasizes that it was not David's physical prowess but his faith in God that provided him the courage to confront the formidable adversary. David exemplifies how we can face our giants by trusting in God's power and sovereignty.