Many bibilica;l passages tell us that the suffering of Christ saved humanity from the punishment deserved for our sins. For instance, Peter 2:24
“He Himself bore our sins in His body on the tree, so that we might die to sin and live to righteousness. ‘By His stripes you are healed’”
How does the pain of Christ’s suffering reconcile God with humanity. Is God pleased with suffering? An authority no less than Aquinas III. 48 2 tells us that God was not pleased with the sufferings of Christ. Rather God is pleased with the great Charity of Chirst by his suffering the pain deserved for our sins. But what is it for Christ to show charity by suffering? Charity or love is willing the good of the other. It seems Christ willed immense suffering as the good for humanity. Now immense suffering is evil. So, it seems that Christ willed an evil as a good for humanity.
How can an evil be a good? An evil is a good if it ought to be. How can an evil be be something which ought to be? An evil ought to be when it is willed to be by violating a moral law. See Review of My Moral Harm Concept. Violations of moral laws create ad hoc specific moral prescriptions that some harm ought to be done. These ad hoc norms make human morality inconsistent and because of the immense amount of immorality place humanity under a moral burden that much suffering ought to be. Retributive punishment removes only a few of these ad hoc norms. So, our retributive punishments improve morality only marginally. Our efforts leave morality on the whole requiring that evil ought to be. Now ultimately evil is what ought not be. So, our current morality specifies that we ought not be. According to our current morality, if everything becomes as it ought to be, humanity ought not be.
Now, using certain theological assumptions, Christ’s suffering sufficed to satisfy every violation induced ad hoc norm obligating some harm; all of them past, present and future. This creates a new moral order for a reality when all is as it ought to be. That moral order will be fully compatible with “Do good, avoid evil.” There will be no violations to induce requirements for evil as retribution. However, it will still be a moral order for free choice because its subjects will have the free will of obedience. See Obedience vs. Autonomy