Biblical Answer

David learned several things when he fought Goliath. First, he learned that true strength comes from God, not from human power or experience. Before facing Goliath, David rejected Saul's offer of armor and instead chose to trust in God's power, which he had already demonstrated in his previous experiences of overcoming animal attacks (1 Sam. 17:40-51). By doing so, David showed that he understood that his success was not based on his own abilities, but on God's strength and presence.

Second, David learned that God's power can be harnessed through faith and obedience. David's trust in God's power was not just a matter of feeling confident, but also a matter of trusting in God's promises and commands. He had been taught by his father Jesse to trust in God's protection and provision (1 Sam. 16:18), and he had already seen God's power at work in his life. By trusting in God's power, David was able to overcome the seemingly impossible task of defeating Goliath.

Third, David learned that his identity and purpose are rooted in God's purposes and promises. David's victory over Goliath was not just a personal achievement, but also a demonstration of God's power and presence in the world. By trusting in God's power and promises, David was able to fulfill his role as a warrior and a leader, and he was able to bring glory to God. This understanding of his identity and purpose would shape David's life and ministry, as he went on to become a great king and a mighty warrior for God.