Chuck Smith emphasizes God's salvation through the story of David and Goliath, highlighting David's unwavering confidence in the Lord's deliverance. David understood that the battle belonged to God, and his past experiences of God's faithfulness fueled his trust for the future. Smith points out that God's methods of deliverance are often unconventional, teaching us to rely on Him rather than our own understanding or conventional means. Ultimately, the purpose of God's deliverance is to reveal His power to the world and to bless all humanity, demonstrating that He saves not through worldly weapons but through faith.