What does the Gospel say about those who do not believe?

The Gospel clearly teaches that while some will not respond to its message, God's sovereignty ensures that His purposes will always succeed. The preacher notes that some Jews, despite witnessing miracles, still did not believe in Jesus (John 11:45), which raises questions about unbelief in relation to God's plan. However, this does not indicate that Christ's sacrifice is futile; rather, it reflects the mystery of God's will where He actively draws some to Himself while allowing others to harden their hearts (Romans 11:8). This affirms that God's grace is sufficient for those He has chosen and serves as a reminder of God’s ultimate authority over salvation.