I believe that we must obey God's law, but it is the spirit of that obedience that matters most to God. We strive for the right, but His grace abounds in our failures. He alone is completely faithful. As we grow in Christ, we sacrifice more self, and conform to His image, we bear fruit. The fruits of the Spirit begin to come to fruition, as we endure trials, and grow in patience, and trust in the Lord through obedience. If we focus on the inward, the outward gets taken care of by God, through sanctification. We must honestly seek God, study and rightly divide the Word of truth.
David lauds God's law in Psalm 119. As believers we should love His law, and rest under the umbrella of protection it provides. However, we should not make the law our idol, or a way to be self-righteous towards others. It I am able to obey God, it is only by His grace, and I have no cause to be proud. If I fail, I do not have to quit, or feel I am not saved. This is also pride to think that an act of sin on my part can make God a liar. God cares for me, and He forgives. Nothing will break the covenant He has made with me, not even my own failings. So, my heart should desire to glorify God, through obedience, and I will by His grace. But I do not seek to do those outward things first, and then make myself good enough to come to God and receive His grace...this is a spirit of self-righteous pride, and an impossibility.
A heart that loves God, desires to obey His Word, but in loving obedience. We must love God first, and then obey. John 14:15 "If you love me, keep my commandments." We must also understand fully, that nothing we do is apart from His grace, and if we fail, He is faithful to forgive.
To outwardly obey the law, and have not the love of God in our hearts is wrong, there is no heart obedience. For one to say they know Christ, and yet they live in disobedience to His Word is wrong, there is no heart obedience. Both scenerios are rooted in the same thing. Neither love God, because He says if you love me, keep my commandments. This is an act of love, an act of one with heart obedience to Christ. So, a believer has both the love of God, and understands His wondrous grace, while striving for the right, and seeking to bear fruit unto Him.
So, the New Covenant is that we no longer need those priestly things as before, no longer need to make sacrificial offerings of blood, Christ's blood accomplished our forgiveness for sins once and for all. Praise God. The curtain was torn, and we can all now enter into the Holy of Holies, we are the Tabernacle of the Holy Spirit. That is the New Covenant.
Christ told us that we should love the Lord our God with all our heart, minds, and souls...and our neighbors as ourselves...all the laws and the prophets hang on these two commandments. The spirit of the law, not the letter...Christ did not do away with it, He fulfilled it...we are required to do both in heart obedience.
The Lord bless you all.