And once again we run into the problem of translating meaning-laden Greek and Latin into simplistic English.

The Koine word being translated as “divorce”, “adultery”, and so on in various translations is “porneia”. A direct translation is usually “sexual immorality” but its import is much more than that. A better phrasing might be “sexual depravity”.

It includes adultery, fornication, prostitution, homosexual relations, incest, group activities, and so on. It is a very negative word. One would not use it for the average adulterer.

What it is describing is someone who is incapable of contracting a marriage because they cannot be monogamous.

Today that would be grounds for annulment because the party could not contract a marriage.