Sin breaks stuff. Sometimes we lose sight of the ways that sin hurts. That leads us to really focus on the negatives of God’s law. When we do that, we tend to forget the whole point. The 6th Commandment, you shall not commit adultery, is bigger than a list of things we’re not supposed to do. It’s chiefly about why marriage is good. Chastity is not an absence of immorality. It’s a presence of something beautiful.