God justifies his mercy by punishing Christ in our place. The cross is full punishment paid for full punishment due. Even under our own laws, it is never just to punish someone twice for the same crime. Therefore, God is justified in showing us his mercy because nothing in our lives that deserves punishment has gone unpunished. “If we have now been justified by his blood, much more shall we be saved by him from the wrath of God” (Rm 5:9). This is why the gospel is called “good news of great joy!” (Lk 2:10).
Bring this good news specifically to the guilt and grief of abortion. By God’s power, tears of confession will yield to joy, confidence, and testimony to the grace of Christ.