The sermon explores the nature of divine justice and forgiveness, challenging the common misconception that God simply overlooks sin upon request. It emphasizes that true forgiveness requires atonement, highlighting the inadequacy of personal efforts or good deeds. Drawing from 1 John 1:9, the message underscores that God's forgiveness is just because of Jesus Christ's sacrifice, which provides the necessary payment for sin, and asserts that faith in Christ is the sole pathway to experiencing this grace and being cleansed from unrighteousness.