Chapter 32 — Part III: The Decalogue — The Ninth and Tenth Commandments
Section 27. "His Wife" — The Commandment which forbids us to covet the goods of our neighbour, is followed by another, which forbids us to covet our neighbour's wife -- a law that prohibits not only the adulterer's criminal desire of his neighbour's wife, but even the wish to marry her. For of old when a bill of divorce was permitted, it might easily happen, that she who was put away by one husband might be married to another. But the Lord forbade the desire of another's wife lest husbands might be induced to abandon their wives, or wives conduct themselves with such bad temper towards their husbands as to make it necessary to send them away.