The Gospel tells us that our creator has become our redeemer. It announces that the Son of God has become man “for us men and our salvation” and has died on a cross to save us from eternal judgement. The basic description of the saving death of christ in the bible is a as a propitiation, that is, as that which quenced God’s wrath against us by obliteration our sins from his sight. God’s wrath is his righteousness reacting against unrighteousness; it shows itself in retributive justice. But Jesus christ has shielded us from the nightmare prospect of retributive justice by becoming our represenative substitute, in obedience to his Father’s will, and receiving the wages of our sin in our place.
By this means justice has been done, for the sins of all that will ever be pardoned were judged and punished in the person of God he Son, and it is on tis basis that pardon is now offered to us offenders. Redeeming love and retributive justice joied hands, so to speak, at Calvary, for there God shoed himself to be “just, and the justifier of him that hath faith in Jesus. — “In my place condemned he stood” Chapter 1 “The Heart of the Gospel” by J. I. Packer