Christ has done for us at the Cross, then the moral Law will be perfectly kept without us even having to address it or even think about it. It is done by the Power of the Holy Spirit, Who Alone can carry out in our lives that which is demanded. Having said that, however, the great problem Christians face, as stated, is laws made up by ourselves or by others. We think we can bring about Sanctification (or whatever) in our lives by keeping these laws. We can’t! Such always will end in failure. Again