Mrs. Meyer,
Perhaps you could read the thread again and come up with a perspective that some of us think there is law and there is use of law - two different things. Multiple uses does not have to imply different laws for different people (in my opinion). There is only God's law in the context we are speaking within but multiple uses, e.g. three, that can have different audiences.
... Fletch
What are the audiences for God's Law?
I understand the audience for the law to be sinners, those who are redeemed and those who do not know Christ as the Son of God who gave His life for them and rose from the dead so that they might again be true children of God.
How preciously do you understand the "third use" of the Law?
I understand the third use of the Law to be the Law as applied to the redeemed who still harbor the old Adam/Eve. The Old Adam/Eve can and will tempt sinners to search the Scriptures for something about self that God has to honor. They are also tempted to misappropriate to self what belongs to God alone. They are also tempted to misplace their trust in the gifts of God rather than the Giver.
In short, you and I as redeemed children of God do not need more information about the Law or specific laws that apply to different audiences, we need the Law to keep the old Adam/Eve in check.
Marie