for voluntary sins, we are punished not that the sins which are done may be undone, but because they were done. But punishment does not avail to him who has sinned, to undo his sin, but that he may sin no more, and that no one else fall into the like. Therefore the good God corrects for these three causes: First, that he who is corrected may become better than his former self; then that those who are capable of being saved by examples may be driven back, being admonished; and thirdly, that he who is injured may not be readily despised, and be apt to receive injury. And there are two methods of correction—the instructive and the punitive, which we have called the disciplinary. It ought to be known, then, that those who fall into sin after baptism are those who are subjected to discipline; for the deeds done before are remitted, and those done after are purged. It is in reference to the unbelieving that it is said, “that they are reckoned as the chaff which the wind drives from the face of the earth, and the drop which falls from a vessel.”