Pseudo-Cyprian

The cardinal principles of chastity, brothers, are ancient. How so? Because they were ordained at the same time as the human race itself. For both her own husband belongs to the woman, for the reason that she may know no other besides him, and because the woman is given to the man. This latter is in order that, when what is his own has been given to him, he should seek nothing belonging to another.… Christ gave this judgment when, having been questioned, he said that a wife must not be put away except because of adultery. Thus did he honor chastity. From this has come the levitical decree, “You shall not allow adulteresses to live.” Therefore, the apostle says, “This is the will of God, your sanctification, that you abstain from fornication.”