Actually God Himself divides the Moral from the rest. In Galatians as I showed to you, and even from Exodus, and in Romans, as elsewhere.previously covered and you are absolutely wrong.
see Romans 7 --Paul ((who wrote Galatians and uses words in a consistent way)) defines what he means by "the law" -- using one of the 10 commandments as an example.
the law is the law. all of it. including the decalogue.
breaking it into pieces is a purely human imagination.
COVENANTS
The spiritual (moral) law of God is called, by God, the "Ten Commandments". God calls the rest of it, the 'book of the law':
Here's a simple chart demonstrating this:

Paul does use words in a consistent way, and when you stop abusing the words of scripture and cutting short where Paul uses words like "the law", and "book of the law", you can see the difference which you are trying to hide, by just saying "the law".