This sermon explores the perilous encounter between David and the foolish, wealthy man Nabal, illustrating how a single act of ungenerous pride can provoke righteous anger and lead even a godly man toward sin. Centered on 1 Samuel 25, the message unfolds through three movements: the danger of living under a fool, the spiritual descent into becoming a fool oneself, and the deliverance brought by Abigail's wisdom, courage, and spiritual discernment. Abigail, a woman of deep biblical insight, intervenes with humility and grace, appealing to David not with accusation but with prophetic foresight, redirecting his vengeance toward God's justice. Her actions—bold, sacrificial, and Christ-like—prevent David from becoming like Saul, while God ultimately judges Nabal, demonstrating that divine justice prevails. The sermon concludes with a call to live under the gospel's transformative power, which makes believers brave, prevents them from becoming fools, and enables them to endure foolishness with grace, pointing ultimately to Christ as the true hero who bore the wrath of God on behalf of sinners.