When facing insurmountable challenges in life, we can learn from David's battle with Goliath. Giants in our lives make us feel inadequate, weak, unskilled, and afraid. However, David teaches us three principles for confronting these giants: serve faithfully in our current responsibilities, see the fight correctly as God's battle rather than just our own, and step forward with courage knowing God empowers us. Our giants aren't just defying us—they're defying the living God who has already won the ultimate victory over sin and death through Jesus Christ.