How do we know God's judgment on sin is just?

God's holiness necessitates a just response to sin. In Romans 6:23, we read, 'For the wages of sin is death.' This clear declaration establishes that there are consequences for sin, reflecting God's justice. When the world was overtaken by wickedness in the days of Noah, God did not overlook the transgressions but acted decisively against sin by sending a flood to cleanse the earth. However, God's justice is perfectly balanced by His mercy, as evidenced by the provision of the ark for Noah and his family. Through this act, we see that while God must condemn sin, He also provides a way of salvation, showcasing His dual nature of justice and mercy.