I think it's better to apply a bit of Frame-ian perspectivalism. Think about it this way. The commandment says, "Thou shalt not commit adultery." Adultery is covenant unfaithfulness. The moral aspect of that is obvious. But think about this as well. Who has displayed true covenantal faithfulness -- who truly fulfills that commandment? It's the Lord Jesus Christ. Not only did He remain covenantally faithful Himself (not committing spiritual adultery), but He has shown the ultimate measure of faithfulness to His bride, the Church, by loving her and giving Himself up for her. So that commandment can be seen ceremonially. In fact, all the OT law must be seen that way -- Christ showed His disciples how the entire OT, beginning with Moses, spoke of Him (Luke 24:27). All the law -- not just the laws about temple sacrifices -- are "ceremonial" in this sense.
Similarly, that commandment has a civil perspective. If the civil magistrate is going to enact and enforce laws that punish evildoers and praise those who do good (Romans 13), then those laws must be such as to support spousal faithfulness.
I believe one should look at all the OT law through these three perspectives.



