The Bible’s laws can easily be assigned to three categories. I use them and teach them.
But in doing serious Biblical analysis, they can be misleading.
For example, I’ve read people claiming the decalogue contains “only moral” law. Since the civil penalty for murder goes back to Noah, I have doubts about this. But apart from that, what about the ceremonial law? How are laws about images (2nd command) and Sabbath (4th command) not ceremonial?
The answer seems to be that “ceremonial” laws are viewed by some as only temporary. Therefore the decalogue must contain no ceremonial laws. But this gets to be a circular definition.
And what about the dietary prohibition on drinking blood? That goes from Noah (where meat eating is first permitted) to Acts 15 and laws for the Gentiles.
And what is the Biblical penalty for the civil crime of involuntary manslaugher? One had to flee to a city of refuge and stay there until the High Priest died. Is that civil law or ceremonial?
And when Reformed exegetes argue from circumcision to baptism, aren’t they agreeing that the principles of the ceremonial law still apply by analogy? Don’t the ceremonial laws have “direct equity”?