How do we know that God judges sin?

God's judgment on sin is vividly depicted in the account of Noah. Genesis 6 describes how God saw the wickedness of man and decided to destroy the earth, showcasing His holy response to sin. The narrative serves as a warning and an example of God's justice; He is righteous and does not overlook sin. His judgment reflects His character and the moral order He has established, where sin always leads to consequence. The flood reinforces the truth that God will address sin; it serves as a historical reminder of the serious nature of rebellion against Him.