It is that, through the work of Christ in atonement, justice is not violated but satisfied when God spares a sinner. Redemptive theology teaches that mercy does not become effective toward a man until justice has done its work. The just penalty for sin was exacted when Christ our Substitute died for us on the cross. However unpleasant this may sound to the ear of the natural man, it has ever been sweet to the ear of faith. Millions have been morally and spiritually transformed by this message, have lived lives of great moral power, and died at last peacefully trusting in it.
