How do we understand God's justice in relation to Christ's death?

God's justice is depicted as strict and inflexible, requiring that sin be accounted for. In the sacrificial system established in the Old Testament, blood was required for the forgiveness of sins. Christ's death fulfills this requirement as presented in Romans 3:26, where Paul states that God can be both just and the justifier of the one who has faith in Jesus. This means that while God’s justice views sin seriously and requires a penalty, Christ, as the innocent Lamb of God, bore that penalty so that believers are justified before God. Therefore, through Christ, God's justice and mercy are perfectly harmonized. He paid the debt we owed while granting us His righteousness.