I never really grasped or remembered the part where Job repents, which turns the whole story on its head compared to conventional understanding, at least so far as I understood it.
Even if following the law perfectly, having obeyed the Father to get what we want means we have the wrong motivation and a false god of our own making.
The message is that God wants a relationship, not a slave or a performing monkey.
True, God wants a relationship. If God wanted slaves, then He could have created us as robots. Robots obey laws perfectly. The problem with robots is that they don't form relationships.
I tend to view the new covenant as equating in one respect to children coming into adulthood, no longer subject to the constant disciplinary authority of the parent, but rather loved unconditionally, allowed to do as they please, wrong or right.