4 For when the battle was still going on, and the struggle of a glorious contest was raging in the persecution, the courage of the soldiers had to be excited with every exhortation, and with full urgency, and especially the minds of the lapsed had to be roused with the trumpet call, as it were, of my voice, that they might pursue the way of repentance, not only with prayers and lamentations; but, since an opportunity was given of repeating the struggle and of regaining salvation, that they might be reproved by my voice, and stimulated rather to the ardour of confession and the glory of martyrdom.
Finally, when the presbyters and deacons had written to me about some persons, that they were without moderation and were eagerly pressing forward to receive communion; replying to them in my letter which is still in existence, then I added also this: “If these are so excessively eager, they have what they require in their own power, the time itself providing for them more than they ask: the battle is still being carried on, and the struggle is daily celebrated: if they truly and substantially repent of what they have done, and the ardour of their faith prevails, he who cannot be delayed may be crowned.”
But I put off deciding what was to be arranged about the case of the lapsed, so that when quiet and tranquillity should be granted, and the divine indulgence should allow the bishops to assemble into one place, then the advice gathered from the comparison of all opinions being communicated and weighed, we might determine what was necessary to be done. But if any one, before our council, and before the opinion decided upon by the advice of all, should rashly wish to communicate with the lapsed, he himself should be withheld from communion.
Source: The Epistles of Cyprian (New Advent)