I’ve been following this discussion with interest, and not to throw in a wrench or anything, but in the OT we see God literally, in an audible voice accompanied by fire and thunder, decreeing His Ten Commandments to the Hebrews. They responded with “Let not God speak to us, lest we die, etc.” IMO, that’s the point. You do die when you truly hear from God. It’s the only way to escape from this world’s system and the effects of the TOKOGE (that would be the wrong tree for anyone not familiar with our catchy abbreviations). 
So I’m wondering how you come to the conclusion that the law was just something dreamed up by Moses et al. (Maybe that’s not what you’re saying, but that’s what I heard . . . you know how that is.) It looks to me like, if God was not the one giving the law (the whole law), Moses or whomever had no qualms about presenting the law as having been given directly by God. And even in the NT, we see the law presented as having been our tutor to lead us to grace.
I’m willing to change my opinion, given sufficient evidence and the witness of the Spirit, but at present it looks to me that God gave the law because the people didn’t want the relationship. They wanted a safe list of rules that they could apply and feel good about them – know where they were with God, and none of this nebulous stuff about following the leading of the Spirit. So God gave them what they asked for and allowed them to learn for themselves how impossible it is to live a righteous life in one’s own strength. Even obeying the law perfectly misses the point, because of course the point is LOVE, and that can only be entered into by the Spirit.
David, for all his inconsistencies, saw and apprehended this (as did a few others we know of) and was called a “man after God’s heart.” We may well scratch our heads over that, reading of David’s sins and myriad foolish acts, but God saw David’s genuine repentance and his desire for the intimate relationship with Him, and of course, his faith and child-like trust. So David transcended the law in advance of most of his countrymen. But I’m getting off the subject.
I’m not sure how we can get past admitting that the law of Moses is at least presented in scripture as having been inspired and given by God and with His approval. I’ve looked desperately to see whether there isn’t some hint that Moses wrote those slavery laws and (to us) unpleasant laws about women, etc., and either somebody lied, or those laws came from the Throne. Moses (who got it) was constantly in the tent of meeting, only second to Joshua’s time there. He came down from the mount with his face glowing from time spent with God. Moses says he got all that stuff directly from our Father.
The idea of the law as the accuser, on the other hand, seems perfectly consistent. Paul said that the law was good, but that it brought death to him when he learned it. I believe that we all come to some sense of the law at some point in our lives. If we don’t take up the one Moses wrote, then we make our own version – often we use the NT to craft it. This is the way of natural humans; to eat from the TOKOGE, even if we build that tree from NT scriptures. So in this sense both Gentiles and Jews need deliverance from the law. They are condemned by the law, and we are condemned without the law by violating our own consciences (and conscience is as much a function of social norms (law) as of our own innate moral senses).
So anyway, I didn’t mean to write so long, but what do you say about this?
Blessings and thanks, Cindy