When David went out to confront Goliath, he answered the giant's taunts with forceful and confident promises to destroy him. Where did this come from? Was David so arrogant and filled with pride that he thought he could win by his own strength? As Pastor Mark makes clear to us in today's study, David's confidence was in God, not himself. Furthermore, David's anger at the Philistine's impudence toward the God of Israel was not something that he could allow to go unanswered. And He knew God would fight for him. David was in God's will, doing God's work, and he knew that because of that, God would defeat the enemy.