From An Essay on the Development of Christian Doctrine
by Venerable John Henry Newman, C.O.

There is a celebrated passage in St. Cyprian, on the subject of the punishment of lapsed Christians, which certainly seems to express the same doctrine. "St. Cyprian is arguing in favour of readmitting the lapsed, when penitent; and his argument seems to be that it does not follow that we absolve them simply because we simply restore them to the Church. He writes thus to Antonian: 'It is one thing to stand for pardon, another to arrive at glory; one to be sent to prison (missum in carcerem) and not to go out till the last farthing be paid, another to receive at once the reward of faith and virtue; one thing to be tormented for sin in long pain, and so to be cleansed and purged a long while by fire (purgari diu igne), another to be washed from all sin in martyrdom; one thing, in short, to wait for the Lord's sentence in the Day of Judgment, another at once to be crowned by Him.' Some understand this passage to refer to the penitential discipline of the Church which was imposed on the penitent;and, as far as the context goes, certainly no sense could be more apposite. Yet ... the words in themselves seem to go beyond any mere ecclesiastical, though virtually divine censure; especially 'missum in carcerem' and 'purgari diu igne.'"