Origen of Alexandria

According to the law, for example, the adulterer and the adulteress were punished with an immediate death. Because of the fact that he bore the penalty for his sin and paid punishments which fitted the evil committed, what will be after this that threatens their souls with revenge, if they transgressed no more, if there is not another sin which condemns them, but they committed only this single fault when they were punished and bore for this the punishment of the law? “The Lord will not punish twice for the same thing,” for they took their sin and their penalty for the crime was taken away. And for this reason, this kind of precept is not found unmerciful, as the heretics assert, accusing the law of God and denying that there is human feeling contained in it. But it is full of mercy by virtue of the fact that through this more people would be cleansed from sins than would be condemned.