Righteous redemption

Sin deserves judgment. Your sin deserves God's judgment. In the first chapter of Isaiah, God declares his righteous judgment against the sin of Israel. Taking verse 27 as a general principle, applicable to God's dealings with sinners today, we look at the redemption promised, a ransom price paid, a deliverance accomplished. Then we turn to the redemption described in terms of the justice and righteousness of God displayed. Finally, we look at the redemption bestowed on the penitents. Where does a sinner find such a redemption? Where does God show himself both just and the Justifier, if not at the cross of Jesus Christ?