This sermon presents a sobering and theologically rigorous exposition of eternal punishment, rooted in Scripture and centered on the reality of hell as a place of everlasting darkness, torment, and divine judgment. Drawing from 1 Peter 3:19 and the story of Noah's flood, it emphasizes God's patience and long-suffering over 120 years, contrasted with the finality of judgment when mercy closes and the door is shut. The preacher underscores that unbelief is not mere ignorance but active disobedience, and that hell is not a temporary or redeemable state, but an eternal prison where sinners face the full weight of God's wrath, restrained only by divine justice. Rejecting sentimental views of God, annihilationism, and universalism, the sermon affirms the biblical teaching of eternal punishment, the necessity of faith in Christ alone for salvation, and the urgent call to flee from wrath to come. It concludes with a powerful exhortation to repentance, faith, and reliance on Christ as the only way to safety, warning that the day of mercy is not guaranteed and that only those who believe in Him will be delivered from the chains of sin and eternal condemnation.