Chuck Smith emphasizes the theme of God's deliverance in his sermon based on Daniel 6:18, recounting King Darius's sleepless night filled with regret after being manipulated into condemning Daniel. Despite the decree, Daniel's unwavering faith led him to continue praying, demonstrating his trust in God's ability to deliver him from the lions. Darius, filled with doubt, questioned whether Daniel's God could save him, only to be overjoyed when he discovered that God had indeed protected Daniel. Smith encourages believers to recognize God's limitless power and ability to deliver us from our own trials, urging us to trust in His promises and capabilities.