Such acts cried out for vengeance. Augustin, who up till this time had recoiled from asking the public authorities to prosecute, who, as an observer of the apostolic tradition, did not recognize the interference of the civil power in Church matters—well, Augustin had to give way to circumstances, and also to the pressure brought to bear on him by his colleagues. Councils assembled at Carthage petitioned the Emperor to take exceptional measures against the Donatists, who laughed at all the laws directed against heretics. When they were summoned before the courts they demonstrated to the judges, who were often pagans incompetent to decide in these questions, that it was they who really belonged to the only orthodox Church. Something must be done to end this equivocal position, and to bring about once for all a categorical condemnation of the schism. Augustin, acting in concert with the primate Aurelius, was the ruling spirit of these meetings.

Let us not judge his conduct by modern ideas, or be in a hurry to exclaim against his intolerance. He and the Catholic bishops, in acting thus, were complying with the old tradition which had influenced all the pagan governments. Rome, particularly, though it recognized all the local sects, all the foreign religions, never allowed any of its subjects to refuse to fall in with the official religion. The persecutions of the Christians and the Jews had no other motive. Now that it was become the State religion, Christianity, willingly or unwillingly, had to summon people to the same obedience. The Emperors made a special point of this from political reasons easy to understand—to prevent riots and maintain public order. Even if the bishops had refrained from all complaint, the Imperial Government would have acted without them and suppressed the disturbances caused by the heretics.

Just look at the situation and the men as they were at that moment in Africa. It was the Catholics who were persecuted, and that with revolting fury and cruelty. They were obliged to defend themselves. In the next place, the distribution of property in those countries made conversions in batches singularly easy. Multitudes of farm tenants, workmen, and agricultural slaves, lived upon the immense estates of one owner. Without any interest in dogmatic questions, they were Donatists simply because their master was. To change these devouring wolves into tranquil sheep, it was often quite enough if the master got converted. The great blessing of peace depended upon pressure being brought to bear on certain persons. When all day and every day there was a risk of being murdered or burned out by irresponsible ruffians, the temptation was very strong to fall back on such a prompt and simple remedy. Augustin and his colleagues ended by making up their minds to do so. For that matter, they had no choice. They were bound to strike, or be themselves suppressed by their enemies.

However, before resorting to rigorous measures, they resolved to send forth a supreme appeal for reconciliation. The Catholics proposed a meeting to the Donatists in which they would loyally examine one another's grievances. As personal or material questions made the great bar to an understanding, they promised that every Donatist bishop who turned convert should keep his see. In places where a schismatic and an orthodox bishop were found together, they would come to a friendly agreement to govern the diocese by turns. Where it was impossible for this to be done, it was proposed that the Catholic should resign in favour of the other. Augustin lent all his eloquence to carry this motion, which was sufficiently heroic for a good number of bishops who were not so detached as he from the goods of this world. And one must allow that it was difficult to go much further in the way of self-denial.

After a good deal of skirmishing and hesitation on the side of the schismatics, the Conference met at Carthage in June of the year 411, under the presidency of an Imperial commissioner, the tribune Marcellinus. Once again, the Donatists saw themselves condemned. Upon the report of the commissioner, a decree of Honorius classed them definitely among heretics. They were forbidden to rebaptize or to assemble together, under penalties of fine and confiscation. Refractory countrymen and slaves would be liable to corporal punishment, and as for the clerics, they would be banished.

The effect of these new laws was not long in appearing, and it fully answered the wishes of the orthodox bishops. Many populations returned, or pretended to return, to the Catholic communion. This result was largely the work of Augustin, who for twenty years had worked to bring it about by preaching and controversy. But, as might be expected, he did not overdo his triumph. Without delay, he set himself to preach moderation to the conquerors. Nor had he waited till the enemy was defeated to do that. Ten years before, while the Donatists were besetting the Catholics everywhere, he said to the priests of his communion:

"Remember this, my brothers, so as to practise and preach it with never-varying gentleness. Love the men; kill the lie! Lean on truth without pride; fight for it without cruelty. Pray for those whom you chide, and for those to whom you shew their error."

However, the victory of the party of peace was not so thorough as it had seemed at first. A good many fanatics here and there grew obstinate in their resistance. The Circoncelliones, maddened, distinguished themselves by a new outbreak of ravages and cruelties. They tortured and mutilated all the Catholics who fell into their hands. They had invented an unheard-of refinement of torture, which was to cover with lime diluted with vinegar the eyes of their victims. The priest Restitutus was assassinated in the suburbs of Hippo. A bishop had his tongue and his hand cut off. If the towns were pretty quiet, terror began to reign once more in the country places.

The Roman authorities exerted themselves to put an end to these bloody scenes. They heavily chastised the offenders whenever they could catch them. In his charity, Augustin interceded for them with the judges. He wrote to the tribune Marcellinus:

"We would not that the servants of God should be revenged by hurts like to those they suffered. Surely, we are not against depriving the guilty of the means to do harm, but we consider it will be enough, without taking their lives or wrenching any limb from them, to turn them from their senseless tumult by the restraining power of the laws, in bringing them back to calm and reason; or, in a last resort, to take away the opportunity for criminal actions by employing them in some useful work…. Christian judge, in this matter fulfil the duty of a father, and while repressing injustice, do not forget humanity."