50 And yet some occasions may arise, where a wife also, with the consent of her husband, may seem under obligation to do this for the sake of that husband himself; as, for instance, is said to have happened at Antioch about fifty years ago, in the times of Constantius. For Acyndinus, at that time prefect and at one time also consul, when he demanded of a certain public debtor the payment of a poundweight of gold, impelled by I know not what motive, did a thing which is often dangerous in the case of those magistrates to whom anything whatever is lawful, or rather is thought to be lawful, viz. threatened with an oath and with a vehement affirmation, that if he did not pay the foresaid gold on a certain day which he had fixed, he would be put to death.
Accordingly, while he was being kept in cruel confinement, and was unable to rid himself of that debt, the dread day began to impend and to draw near. He happened, however, to have a very beautiful wife, but one who had no money wherewith to come to the relief of her husband; and when a certain rich man had had his desires inflamed by the beauty of this woman, and had learned that her husband was placed in that critical situation, he sent to her, promising in return for a single night, if she would consent to hold intercourse with him, that he would give her the pound of gold.
Then she, knowing that she herself had not power over her body, but her husband, conveyed the intelligence to him, telling him that she was prepared to do it for the sake of her husband, but only if he himself, the lord by marriage of her body, to whom all that chastity was due, should wish it to be done, as if disposing of his own property for the sake of his life. He thanked her, and commanded that it should be done, in no wise judging that it was an adulterous embrace, because it was no lust, but great love for her husband, that demanded it, at his own bidding and will.
The woman came to the villa of that rich man, did what the lewd man wished; but she gave her body only to her husband, who desired not, as was usual, his marriage rights, but life. She received the gold; but he who gave it took away stealthily what he had given, and substituted a similar bag with earth in it. When the woman, however, on reaching her home, discovered it, she rushed forth in public in order to proclaim the deed she had done, animated by the same tender affection for her husband by which she had been forced to do it; she goes to the prefect, confesses everything, shows the fraud that had been practised upon her.
Then indeed the prefect first pronounces himself guilty, because the matter had come to this by means of his threats, and, as if pronouncing sentence upon another, decided that a pound of gold should be brought into the treasury from the property of Acyndinus; but that she (the woman) be installed as mistress of that piece of land whence she had received the earth instead of the gold. I offer no opinion either way from this story: let each one form a judgment as he pleases, for the history is not drawn from divinely authoritative sources; but yet, when the story is related, man's instinctive sense does not so revolt against what was done in the case of this woman, at her husband's bidding, as we formerly shuddered when the thing itself was set forth without any example.
But in this section of the Gospel nothing is to be more steadily kept in view, than that so great is the evil of fornication, that, while married people are bound to one another by so strong a bond, this one cause of divorce is excepted; but as to what fornication is, that we have already discussed.
Source: Our Lord's Sermon on the Mount (New Advent)