“For whoever keeps the whole law but fails in one point has become guilty of all of it.” James 2:10
This verse is an excellent example of how Scripture speaks of the law as an entire unit, not divisible into thirds, of civil, moral, and ceremonial. There is Old Covenant law, New Covenant law, but they are units, such that to violate one ordinance is to be accountable, or guilty, for all of it, to be counted as a law breaker.
This verse cannot be used to establish the claim that all sin is the same, equally abhorrent, sin is sin, etc. It establishes the truth that to transgress the law is to transgress the law.
This means that for Jesus to fulfill the law of Moses, he had to keep it perfectly in full, which he did. He failed not in one part.
This means that he fulfilled the Mosaic law as an entire unit, and established a New Covenant as an entire unit by his blood.
This means that the Jewish man in the Old Covenant was not saved by his faithfulness to the Mosaic law, but by grace alone through faith alone in the atoning Messiah, for he, no matter who he was, was a law breaker.
This means that the Christian under the New Covenant is not saved by his faithfulness to the New Covenant law, but by grace alone through faith alone in the atoning Messiah.