So the Gospel is also God’s justifying word about Himself, since under the old covenant, with its symbolic sacrificial system, it appeared as if God was ignoring the sins of those who simply trusted in Him for forgiveness (Rom. 3:25). Now, in the shadow of the cross, it is possible to see that Jesus is the reason that God could justify the ungodly, like Abraham and David (cf. Rom. 4:1-8), without compromising His own integrity. When God forgave His people in the past, He do so looking forward to the cross of Christ as the basis of and revelation of that divine righteousness which makes forgiveness possible. The death of Jesus demonstrated with finality God’s “justice at the present time, so as to be just and the one who justifies those who have faith in Jesus” (Rom. 3:26).
Scott Hafemann