Nicene and Post-Nicene Fathers, Ser. II, Vol. XI:
The Works of Sulpitius Severus.: Chapter XXII.

Chapter XXII.

“A certain young man from Asia, exceedingly wealthy, of distinguished family, and having a wife and little son, happening to have been a tribune in Egypt, and in frequent campaigns against the Blembi to have touched on some parts of the desert, and having also seen several tents of the saints, heard the word of salvation from the blessed John. And he did not then delay to show his contempt for an unprofitable military life with its vain honor. Bravely entering into the wilderness, he in a short time became distinguished as being perfect in every kind of virtue. Capable of lengthened fasting, conspicuous for humility, and steadfast in faith, he had easily obtained a reputation in the pursuit p. 35 of virtue equal to that of the monks of old. But by and by, the thought (proceeding from the devil) entered his mind that it would be more proper for him to return to his native land and be the means of saving his only son and his family along with his wife; which surely would be more acceptable to God than if he, content with only rescuing himself from the world, should, not without impiety, neglect the salvation of his friends. Overcome by the plausible appearance of that kind of spurious righteousness, the recluse, after a period of nearly four years, forsook his cell and the end to which he had devoted his life. But on arriving at the nearest monastery, which was inhabited by many brethren, he made known to them, in reply to their questionings, the reason of his departure and the object he had in view. All of them, and especially the Abbot of that place, sought to keep him back; but the intention he had unfortunately formed could not be rooted out of his mind. Accordingly with an unhappy obstinacy he went forth, and, to the grief of all, departed from the brethren. But scarcely had he vanished from their sight, when he was taken possession of by a demon, and vomiting bloody froth from his mouth, he began to lacerate himself with his own teeth. Then, having been carried back to the same monastery on the shoulders of the brethren, when the unclean spirit could not be restrained within its walls, he was, from dire necessity, loaded with iron fetters, being bound both in hands and feet—a punishment not undeserved by a fugitive, inasmuch as chains now restrained him whom faith had not restrained. At length, after two years, having been set free from the unclean spirit by the prayers of the saints, he immediately returned to the desert from which he had departed. In this way he was both himself corrected and was rendered a warning to others, that the shadow of a spurious righteousness might neither delude any one, nor a shifting fickleness of character induce any one, with unprofitable inconstancy, to forsake the course on which he has once entered. And now let it suffice for you to learn these things respecting the various operations of the Lord which he has carried on in the persons of his servants; with the view either of stimulating others to a like kind of conduct, or of deterring them from particular actions. But since I have by this time fully satisfied your ears—have, in fact, been more lengthy than I ought to have been—do you now (upon this he addressed himself to me)—pay me the recompense you owe, by letting us hear you, after your usual fashion, discoursing about your friend Martin, for my longings after this have already for a long time been strongly excited.”