What does the Bible say about God's wrath against sin?

In Romans 1:18, Paul states that the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men. This passage emphasizes God's righteous anger towards sin and the sinful nature of humanity, highlighting that all men are under the condemnation and wrath of God as a consequence of their sin. The significance of God's wrath is a reflection of his holiness and justice, indicating that sin cannot be overlooked. Without acknowledging our sinful nature, we cannot fully appreciate the magnitude of God's mercy and the need for reconciliation through Christ, who absorbed God's wrath on behalf of sinners.