How do we know that God forgives sin?

The assurance of God's forgiveness can be found throughout scripture, most notably in the Old and New Testaments. In Exodus, God demonstrates His readiness to forgive by not destroying the Israelites despite their idolatry, showing that His mercy prevails over justice when mediated by a representative like Moses. This foreshadows the ultimate mediation of Christ, who bears our sins and appeases God's wrath. Hebrews and Jeremiah emphasize that God promises to forgive sins and remember them no more, highlighting the significance of the blood of Christ, which provides the necessary satisfaction for God's justice. Thus, the reality of God’s forgiveness is grounded in His character and the completed work of Christ on the cross.