What does the Bible say about judgment without repentance?

In Revelation 9, we see a vivid depiction of judgment that is unleashed upon the earth due to the persistent unrepentance of humanity. Despite facing severe calamities, the rest of mankind did not repent of their works or worship of false idols (Revelation 9:20-21). This illustrates the biblical principle that judgment often comes as a consequence of continued rebellion against God, as people harden their hearts instead of turning to Him. The judgments serve as a reminder of the need for repentance and acknowledgment of God's sovereignty, justice, and mercy.