Today the Church celebrates the Solemnity of Sts. Peter and Paul, closing out the Pauline year. This is a feast that goes back to the earliest days of the Church, and their feasts have always been celebrated as one. The Office of the Readings today provides an excerpt from St. Augustine's Sermon 295, which can be found here (though it is possible that link will only be up for today, so if you view this after June 29 I think it will be gone. I could be wrong, though). Sermon 296 offers another fine example of Augustine's preaching at his best. This sermon we can date exactly due to certain references. It was delivered on June 29, 411, in Carthage, while Rome was still suffering the aftermath of being sacked. As an aside, I have always felt that there is a great parallel between the Donatists and the Society of Saint Pius X (SSPX), and so pay special attention to sections 14-15, which I believe are relevant both to our attitudes towards SSPX, and also the attitudes SSPX ought to take towards full reunion with Rome. What Augustine says about the Donatists we can easily say about SSPX. What he says about the Catholics who rejected the Donatists seeking to return to the Church, we can easily say about we who reject the members of SSPX. Humility and repentance are necessary for SSPX, certainly, but humility, repentance, and generosity are required of us. So here it is, Sermon 296. It's quite lengthy, just to forewarn:
1. This reading of the holy gospel, which sounded in our ears just now, is very apt for today's feast. If it also went down from our ears into our hearts, and there found a place of repose – God's word, you see, reposes in us, when we repose, and acquiesce, in the word of God – then it admonished all of us, who minister to you the Lord's word and sacrament, to feed his sheep. Blessed Peter, the first of the apostles, both lover and repudiator of the Lord Jesus Christ, as the gospel shows, followed the Lord as he was about to suffer; but at that time he wasn't able to follow him to the extent of suffering himself. He followed with his feet, he wasn't yet capable of following with his virtue.
He promised that he would die for him, and he wasn't even able to die with him; he had staked more, you see, than his credit could stand. He had promised more than he could fulfill, because it was in fact unfitting that he should do what he had promised. I will lay down my life, he said, for you (Jn 13:37). But that is what the Lord was going to do for the servant, not the servant for the Lord. So as he had staked more than he was worth, he was then loving in a back-to-front sort of way; that's why he was afraid and denied Christ. Later on, though, the Lord, after he has risen, teaches Peter how to love. While he was loving in the wrong way, he collapsed under the weight of Christ's passion; but when he's loving in the right way, Christ promises him a passion of his own.
2. We remember Peter's weakness in being shocked at the idea that the Lord was going to die. That's what I'm reminding you of. Look, I'm reminding you; those of you who remember can tell themselves the story with me; those who have forgotten can call it to mind as I remind them of it. The Lord Jesus Christ himself foretold his imminent passion to the disciples. Then Peter, full of love for him, but still of a worldly sort, afraid of the slayer of death dying, said, Far be this from you, Lord, far be it; do yourself a favor (Mt 16:22). He wouldn't have said, Do yourself a favor, unless he acknowledged him to be God. So Peter, if he's acknowledged by you to be God, why are you afraid of God dying? You're a man, he's God. and for man's sake God became man, taking upon him what he was not, without losing what he was. So the Lord was going to die in that respect in which he was going to rise again, as a man. So Peter was horrified at the prospect of a human death, and didn't want it to touch the Lord; unwittingly he wanted to close the purse from which our price would flow.
That's when he heard from the Lord, Get back behind, Satan, for you do not share God's ideas, but men's (Mt 16:23). A moment before he had said to him – when he had said, You are the Christ, the Son of the living God – Blessed are you, Simon Bar-Jona, because it was not flesh and blood that revealed it to you, but my Father who is in heaven (Mt 16:16-17). A moment before, blessed; next minute, Satan. But how and why blessed? Not for anything of his own: It was not flesh and blood that revealed it to you, but my Father who is in heaven. And how and why Satan? For you do not share God's ideas, but men's.
Such then was Peter; loving the Lord and wishing to die for the Lord, he followed; and it all turned out as the doctor had foretold, not as the sick patient had self-confidently presumed. Questioned by a maid, he denies once, twice, a third time. He's glanced at by the Lord, he weeps bitterly, with the tears of devoted love he wipes clean the dirt of denial.
3. The Lord rises again, he appears to the disciples; now Peter sees him alive, whose death he had so feared; he sees, not the Lord slain, but death slain in the Lord. So now, encouraged by the example of the Lord's own flesh that death is not to be dreaded all that much, he is taught how to love. Now he really must love, now having seen the Lord alive after death, now he really can love, now he can love without anxiety; without anxiety, because he is going to follow.
So the Lord says, Peter, do you love me?
And he answer, I do love you, Lord.
And the Lord says, "I don't want you, because you love me, to do for me; that, after all, is what I have already done for you. But what? Do you love me? What are you going to give me in return because you love me? Do you love me?
I do love you (Jn 21:15-17). And the same again, and the same a third time, so that love might declare itself three times, because fear had denied three times.
Notice, take to heart, learn; the only question asked is Do you love me?; the only answer given, I do. When he gives that answer, he's told, Feed my sheep. And with his sheep entrusted to Peter, and Peter together with his sheep taken into his own care, he now goes on to foretell his death, and says, When you were younger you used to gird yourself and go where you wished; but when you are older, another will gird you, and carry you where you do not wish to go. But he said this, adds the evangelist, to signify by what sort of death he was going to glorify God (Jn 21:18-19). You can see that what is involved in feeding the Lord's sheep is not refusing to die for the Lord's sheep.
4. Feed my sheep (Jn 21:17). Is he entrusting his sheep to a man equal, or less equal, to the responsibility? First of all, what sort of sheep is he entrusting? Very valuable ones, bought not with gold, not with silver, but with blood. If a human master were entrusting his sheep to a slave, he would undoubtedly consider whether the savings of the slave are equal to the value of his sheep, and would say, "If he loses, or scatters, or eats any of them, he must have the wherewithal to pay for them." So he would entrust his sheep to a slave equal to the responsibility, and would require the slave's means in money for the sheep he had bought with money.
In this case, however, the Lord Jesus Christ is entrusting the slave with sheep he bought with his blood, and so he requires of the slave the capacity to suffer to the point of shedding his blood. It's as though he were saying. "Feed my sheep; I am entrusting my sheep to you."
What sheep?
"Ones I bought with my blood. I died for them. Do you love me? Be ready to die for them." And as a matter of fact, while that human slave of a human master would pay money for sheep destroyed, Peter paid the price of his blood for sheep preserved.
5. Here we go then, brothers and sisters, I would like to say something suitable for this particular time. It was not only Peter who heard what was entrusted to Peter, what was enjoined on Peter. The other apostles also heard, took it to heart, observed it; above all the one who shared Peter's sufferings, and this day with him, the apostle Paul. They heard all this, and transmitted it to us to be heard and listened to. We feed you, we are fed together with you; may the Lord grant us the strength so to love you that we are capable also of dying for you, either in fact or in fellow feeling.
Just because, you see, a martyr's death did not come the apostle John's way, it does not mean that he could be wanting in a spirit prepared for martyrdom. He didn't suffer, but he was able to suffer; God was aware of his readiness. It's like the three boys cast into the furnace in order to be burnt up, not in order to live; shall we deny they were martyrs, just because the flames couldn't burn them? Question the fire, they didn't suffer; question their willingness, they received the crown of martyrdom. God is powerful enough, it is said, to deliver us from your hands; but even if not – there you have their steady hearts, their firm faith, their unshaken courage, their assurance of victory – but even if not, be it known to you, O king, that we are not worshipping the statue which you have set up (Dn 3:17-18). God had other plans; they were not burnt, but extinguished the fires of idolatry in the spirit of the king.
6. So you can see, dearly beloved, what has been set before the servants of God during this age, on account of the future glory that will be revealed in us; a glory which no temporal tribulations of any kind or quantity can even begin to outweigh. For the sufferings of this present time, says the apostle, are not to be compared with the future glory that will be revealed in us (Rom 8:18). If that's the case, none of us should now be thinking in a worldly way, "This isn't the time." The world is being turned upside down, the old man is being shaken, the flesh hard pressed; let the spirit flow clear.
"Peter's body lies in Rome," people are saying. "Paul's body lies in Rome, Lawrence's body lies in Rome, the bodies of other holy martyrs lie in Rome; and Rome is griefstricken, and Rome is being devastated, afflicted, burnt; death stalking the streets in so many ways, by hunger, by pestilence, by the sword. Where are the memorials of the apostles?"
What's this you're saying?
"Here's what I'm saying; Rome is suffering such enormous evils; where are the memorials of the apostles?"
They are there, they are there, but they are not in you. If only they were in you, whoever you are that are saying these things, whoever you are, foolish enough to think these things, whoever you are, called in the spirit and savoring the flesh, whoever you may be of that sort! If only the memorials of the apostles were in you, if only you really gave a thought to the apostles! Then you would see whether they were promised an earthly felicity or an eternal.
7. Listen to the apostle, if his memory, his memorial, is still alive in you: For the temporary lightness of our tribulation works in us to an unbelievable degree, and beyond an unbelievable degree, an eternal weight of glory, if we do not fix our gaze on the things that are seen, but on the things that are not seen; for the things that are seen are temporary, but the things that are not seen are eternal (2 Cor 4:17-18). In Peter himself the flesh was temporary, and aren't you willing for the stones of Rome to be temporary? The apostle Peter is reigning with the Lord, the body of Peter is lying in some place or another. His memorial is meant to stir you to love of eternal things, not so that you may stick to the earth, but so that with the apostle you may think about heaven.
Tell me, if you're one of the faithful, call to mind the memorials of the apostles, the memorial even of the Lord your God, who is certainly now seated in heaven. Listen to where the apostle is directing you: If you have risen with Christ, savor the things that are above where Christ is, seated at the right hand of God; seek the things that are above, not the things that are on earth. For you have died, and your life is hidden with Christ in God. When Christ, your life, appears, then you too will appear with him in glory (Col 3:1-4). What you've heard here is, in one word, "Lift up your hearts." So are you griefstricken, and crying, because timbers and stones have fallen down, and because people have died who were going to die anyway? Granted that someone who's dead is going to live for ever; are you grieving over the collapse of timbers and stones, and the fact that those who were going to die anyway have died? If you have lifted up your heart, where have you got your heart? Is there anything dead there, anything that has collapsed? If you have lifted up your heart, where your treasure is, there is your heart (Mt 6:21). Your flesh is down below, and if your flesh feels dread, don't let is shake your heart.
"But all the same," you say, "I didn't want it to happen."
What didn't you want to happen?
"I didn't want Rome to suffer such dreadful things."
We can pardon you for not wanting it. Don't you be angry with God because he did want it; you're only human, he's God. You're saying, "I don't want it," where he's saying, "I do." He doesn't condemn you for your "I don't want it," and are you going to reproach his "I do"?
"But why does God want this?"
Why does God want this? For the time being accommodate yourself to the will of the Lord your God; when you have become his friend, you will know the plans of the Lord your god. What slave when his master tells him to do something would ever be so proud as to say, "Why?" The Lord keeps his counsel and his plans to himself. They become clearer if he does his duty, if he does well, if from being a servant he becomes a friend, as the Lord himself said: I will no longer call you servants, but friends (Jn 15:15). Perhaps he will also learn the Lord's plans; meanwhile, before he knows the plans, let him willingly carry out the decisions.
8. The lesson I'm still teaching you, as a matter of fact, is patience, not yet wisdom. Be patient, it's the Lord's will. You ask why it's his will? Put off your eagerness for knowledge, prepare for the strenuous effort of obedience. He wants you to bear with what he wants; bear with what he wants, and he will give you what you want. And yet, my dear brothers and sisters, I make so bold as to say that you are going to listen to this gladly, if you already have the basic elements of obedience, if there is to be found in you the meek and mild patience of bearing with the Lord's will, not only when it is mild. When it's mild, of course, we don't bear with it, we love it; it's when it's hard and harsh that we tolerate it, when it's mild and easy we rejoice.
Observe your Lord, observe your head, observe the model of your life; pay attention to your redeemer, your shepherd. Father, if it may be so, let this cup pass from me. How perfectly he shows his human will, and straightaway turns his resistance into obedience! However, not what I wish, but what you wish, Father (Mt 26:39). And here, look, he also said this to Peter: When you are old, another will gird you, and carry you where you do not wish (Jn 21:18). He indicated in him too the human will, as it shrinks from death. Does it mean, because he didn't wish to die, that he didn't wish to receive the crown?
So with you too, what is it you didn't want? To lose your savings, perhaps, which you were going to leave behind here? Take care you don't remain behind with what you should have left behind. You didn't want, perhaps, your son to die before you, you didn't want your wife to die before you. Well after all, even if Rome hadn't been captured, wasn't one of you going to be the first to die? You didn't want your wife to die before you; your wife didn't want her husband to die before her; was God going to accommodate both of you? Let the right order remain with him; he knows how to set in order what he has created. It's for you to accommodate yourself to his will.
9. I can already see what you are saying in your heart: "Look, it's during Christian times that Rome is being afflicted, or rather has been afflicted and burnt. Why in Christian times?"
Who are you, saying this?
"A Christian."
So you answer yourself, if you're a Christian: "It's because it was God's will."
"But what can I say to the pagan? He's insulting me."
What's he saying to you? How is he insulting you?
"Look, when we used to offer sacrifices to our gods, Rome continued to stand. Now, because the sacrifice of your God won the day and been so frequently offered, and the sacrifices of our gods have been stopped and forbidden, look what Rome has to suffer." [As an aside, this is a theme that occupies the greater part of the first half of City of God]
For the time being, give him a very short answer, to get rid of him. You, however, should have quite other thoughts. You weren't called, after all, to embrace the earth, but to obtain heaven; you were not called to an earthly, but to a heavenly felicity; not to temporal success, and fleeting and fickle prosperity, but to eternal life with the angels. Still, for this lover of worldly felicity and grumbler against the living God, who prefers to serve demons and sticks and stones, there's a quick answer you can give. As their own histories tell us, this is the third time that the city of Rome has been burnt. As their own history relates, their own literature relates, this burning of the city of Rome that has just happened is the third occasion. The city that was recently afire amid the sacrifices of Christians had already been twice on fire amid the sacrifices of the pagans. It was once burnt like that by the Gauls, so that only the Capitol Hill was left. A second time Rome was set on fire by Nero, I don't know whether to say out of savagery or frivolity. Nero, the emperor of Rome, gave the order; the slave of idols, the slayer of the apostles, gave the order, and Rome was set on fire. Why, do you suppose, for what reason? A proud, conceited and frivolous man enjoyed the Roman blaze. "I want to see," he said, "how Troy was burnt." So it was burned in this way once, a second time, and now a third time. Why do you like growling against God for a city that has been in the habit of being on fire?
10. "But," they say, "so many Christians suffered such dreadful evils in the sack of the city."
Has it escaped your notice that it is the prerogative of Christians to suffer temporal evils, and hope for everlasting goods? You pagan, whoever you are, have something to wring your hands over, because you have lost your temporal goods, and haven't yet discovered eternal goods. The Christian, though, has something to think about: Reckon it every joy, my brothers, when you fall into various trials (Jas 1:2). When this sort of thing was chanted to you in the temple: "The gods who protected Rome have not saved it now, because they no longer exist," you would say, "They did save it, when they existed."
We, though, can show that our God is truthful; he foretold all these things, you've all read them, you've heard them; but I'm not sure whether you've remembered them, you that are upset by such words. Haven't you heard the prophets, haven't you heard the apostles, haven't you heard the Lord Jesus Christ himself foretelling evils to come? When old age comes to the world, when the end draws near – you heard it, brothers and sisters, we all heard it together – There will be wars, there will be tumults, there will be tribulation, there will be famines (Mk 13:7-8; Lk 21:9-11). Why are we so contradictory to ourselves that when these things are read we believe them, when they are fulfilled we grumble?
11. "But more devastation," they say, "much more, is overtaking the human race now."
Well, I don't know about more, considering all the past history; but for the time being, without prejudice to the truth on that point, suppose it is more; I think it is more. The Lord himself solves the problem. There's more devastation in the world now, much more devastation, he says. Why more devastation now, when the gospel is being preached everywhere? You observe how widespread is the preaching of the gospel; you don't observe in what a godless way it is being ignored. Right now, brothers and sisters, let's leave the pagans out of it for a moment or two, let's turn our eyes on ourselves. The gospel is being preached, the whole world is full of it. Before the gospel was preached, God's will was hidden; by the preaching of the gospel, God's will has become openly known. We have been told in the preaching of the gospel what we ought to love, what we ought to think lightly of, what to do, what to avoid, what to hope for. We've heard it all, God's will is no longer hidden anywhere in the world.
Take the world as a servant, and pay attention to the gospel. Listen to the Lord's voice; this world is the servant: The servant who does not know the will of his lord, and does not behave properly, will be beaten with a few lashes. The servant, the world; it's the servant, because the world was made through him, and the world did not know him (Jn 1:10). The servant who does not know the will of his lord; there you have the world before; the servant who does not know the will of his lord, and does not behave properly, will be beaten with a few lashes. But the servant who knows the lord's will; here you have what the world is like now; now tell yourselves what follows, or rather let us all tell ourselves: The servant who knows his lord's will and does not behave properly, will be beaten with many lashes (Lk 12:48.47). And if only it may be beaten with many lashes, and not be once and for all condemned!
Why do you jib at being beaten with many lashes, you servant who know the wishes of your Lord, and do things deserving of lashes? You're told (here you have one wish of your Lord's), Store up for yourselves treasure in heaven, where neither moth nor rust can spoil, and where thieves cannot dig through and steal (Mt 6:20). You're on earth, he's in heaven, telling you, "Give to me, put your treasure where I can guard it, send it ahead of you; why save it?" What Christ is guarding for you, can the Goth take away from you? You, on the other hand, wiser and more farsighted, naturally, than your Lord, wish to store up treasure nowhere but here on earth. But you are well aware of your Lord's wishes; he wanted you to store it up above. So you, busy storing it up here on earth, must be prepared to be beaten with many lashes. Look, you know the Lord's will, that he wants you to save it up in heaven; you, his servant on earth, are doing what thoroughly deserves lashes, and when you're beaten you blaspheme, you grumble, and you say that what your Lord is doing to you ought not to have been done. What you, a bad servant, are doing, that ought to have been done, I suppose?
12. At least hold on to this position: don't speak ill of your God; praise him, rather, for correcting you; praise him for putting you right, so that he may give you consolation. For whom the Lord loves he corrects, and he whips every son whom he receives (Heb 12:6). You, self-indulgent son of the Master, would like both to be received and not to be whipped; so that you may be thoroughly spoiled and he may be proved a liar. So the memorial of the apostles, by which heaven is being made ready for you, really should have saved for you on earth the crazy follies of the theaters? That's why Peter died and was laid to rest in Rome, is it, in order that not a stone of the theater might fall? God is knocking the playthings of boys from the hands of ill-disciplined adults.
Brothers and sisters, let us decrease both our sins and our grumbles; let us be sworn enemies both to our iniquities and our grumbling; let us be angry with ourselves, not with God. Be angry, most certainly be angry, but for what purpose? And do not sin (Ps 4:4). That's why by angry, in order not to sin. Everyone, after all, who repents, is being angry with himself; being sorry for what he has done, he works off his anger on himself. So do you want God to spare you? Do not you spare yourself; because if you spare yourself, he won't spare you; because if he too does so, you are lost. Just as it's written, He whips every son whom he receives, so also there's this other text to be afraid of: The sinner has irritated the Lord.
"How do you know" – it's as if he were asked – "How do you know that the sinner has irritated the Lord? I've seen the sinner prospering, every day I've seen him doing evil, and suffering no evil, and blaspheming against the Holy Spirit. I've been horrified and dismayed. The sinner has irritated the Lord; this sinner, who has done such evil things, and who suffers no evil has irritated the Lord, has he, provoked the Lord?"
For the greatness of his wrath, he will not search out (Ps 10:3-4). That's what comes next: The sinner has irritated the Lord; for the greatness of his wrath, he will not search out.
The reason he won't search out is that he is very angry; the one who withholds correction is preparing damnation. He will not search out; because if he did search out, he would do some whipping; if he did some whipping, he would put you right. Now, though, he's very angry, very angry with the wicked who prosper. Don't be jealous of them, don't wish to be like them. It's better to be whipped than damned.
13. So the Lord entrusted his sheep to us bishops, because he entrusted them to Peter; if, that is, we are worthy with any part of us, even with the tips of our toes, to tread the dust of Peter's footsteps, the Lord entrusted his sheep to us. You are his sheep, we are sheep along with you, because we are Christians. I have already said, we are fed and we feed.
Love God, so that God may love you; and you can only show you love God to the extent that you manifestly love God's profits. What have you got that you can offer God, you clever so-and-so? What can you offer God? What Peter also could offer him, all that: Feed my sheep. What can you do for God? Help him become greater, become better, become richer, become more honorable? Whatever you will be, he will be just as he always was. So just look next to you; in case perhaps what you should do for your neighbor is help him reach God. When you have done it for one of these least of mine, you have done it for me (Mt 25:40). So if you are bidden to break your bread to the hungry (Is 58:7), have you a duty to shut the Church in the face of someone who is knocking?
14. Why have I said this? I was saddened by what I heard, though I wasn't present myself, that when someone from the Donatists came to the Church, confessing the sin of rebaptism, and was being exhorted by the bishop to repentance, he was objected to by some of the brethren, and driven away. I confess to your graces, this really hurt my deepest feelings; I tell you frankly, this kind of diligence has pleased me not at all. I know they did it out of zeal, I don't doubt they did it out of zeal for God. But they should also turn their attention to that passage of the apostle Paul, where he laments even those who have zeal for God, but not according to knowledge (Rom 10:2).
Look here; he wasn't admitted today; he dies tomorrow; at whose hands will his death be demanded? You're going to say, "But he's pretending."
I answer, "But he's asking. Christian, I would now like you to teach me too; how do you know he's pretending?"
"Because he's afraid for his property."
We know of many who have been afraid for their property, and have become Catholics for that reason. When they have been absolved from their liability, some of them have returned to the Donatists, some though have stayed. As long as they didn't enter the Church, they were afraid for their property; and when they did enter, they learned the truth, and remained. So then, how do you know that this man who is afraid for his property will be among those who turned out to be insincere, especially when such a strong light of truth is shining as now, such an effective conviction of falsehood?
Why do you want to judge people's hearts, Mr. Man? Is that why we bishops have sweated away, that why we've toiled away, that why the truth should have been shown to be unconquered, that it should be made the enemy of those who seek it? We worked hard for the truth to be demonstrated, falsehood to be convicted. God helped us, it was done. Perhaps this man, for whose sake it was done, became a changed person by thinking about it carefully. Why do you want to pass judgment on his motives? I see him seeking admittance, and you accuse him of just pretending? Allow the truth, Christian, of what you can see, and leave judgment on what you can't see to God. Let me put the matter to your graces very briefly: we heard from the Lord himself that his sheep are to be fed; and we know what he says about the sheep through Ezekiel: that sheep must not push sheep around, sheep must not drive sheep away, the strong must not be a burden to the sick. Think of what the apostle says: Correct the unruly, encourage the fainthearted, help the weak (1 Thes 5:14). Correct the unruly; let his be done. Encourage the fainthearted; let this be done. Help the weak; let this be done. Let nobody return evil for evil to anyone (1 Thes 5:15); let that be done. He said so many things; do we pay none of them any attention, except Correct the unruly? Notice: Correct the unruly. Start counting: Encourage the fainthearted, help the weak, let nobody return evil for evil to anyone. You, though, only pay attention to Correct the unruly; take care you aren't unruly yourself, and what's worse, both want to be unruly, and don't want to be corrected.
I beg you through Christ, I implore you not to ruin all our work. Or are you thinking that the thing we have here to be pleased about is that we have defeated falsehood? It's always the truth that is victorious; as for us, what are we? Falsehood was defeated, it was defeated a long time ago. But thank God, it has now been openly defeated, and shown up to everybody. A lot of hard work has gone into the cultivation; why should it be prevented from yielding its crop?
15. For the rest, brothers and sisters, these things must not happen. Nobody should love the Church in such a way as to grudge the Church its profits. It was the day before yesterday, or the day before that, that this thing I'm talking about happened; and the story went round loudly to everybody, that Donatists are not being admitted, when they come to the Church. Do you imagine that no harm was done when this story reached everybody's ears? I'm asking your help; let this voice of mine echo in your ears today in such a way that the thing that has sounded well may drown out the noise of that thing that sounded so badly. Get to work on it.
This is what we said, this is what we bishops proclaim: let them come, let them be admitted in the customary way, those who have never hitherto been Catholics. As for those who were once Catholics, and have been found to be shaky, found to be inconstant and weak, found to be faithless – am I to spare them? Yes, certainly the faithless – well, perhaps those who have been faithless, will turn out to be faithful. Let them too come, and be admitted to penance. Nor should they kid themselves, that when they went back to the Donatist party they did penance there. That penance was being sorry for a good thing; let there be true penance and genuine repentance for a bad thing. When they did penance in the Donatist party, they were being sorry for something good they had done. Now let them do it and be sorry for the bad thing they have done.
You're afraid that since they were found to be faithless, they may trample on that which is holy? But look, even here your fears are taken care of; they are admitted to penance they will be in penance as long as they wish, with nobody forcing them, nobody terrifying them to be reconciled. Because a penitent Catholic is no longer subject to the threats of the laws; he begins to desire to be fully reconciled, with nobody now terrifying him; then at least, trust his sincerity. Let's grant, he was forced to be a Catholic; he will become a penitent. Who, apart from his own will, is forcing him to seek the place of reconciliation? So right now let us allow weakness to enter, so that later on we may test genuineness of will.