Joh 1:17 For the law was given by Moses, but grace and truth came by Jesus Christ.
Problem of old covenant nation was, that they raised law higher than the living relationship with God.
Wandering of the faith glorify Yeshua the Messiah and by that way set Scriptures to the right place; in other words the law is at the bottom of the mercy, the letter gets life through mercy, for the law was given through Moses, but grace and truth came through Yeshua the Messiah. The law in other words teaching is needed, but just in Yeshua the Messiah is possibility live in the mercy, in which the teaching of the word of God through the Holy Spirit brings us ability, that we can live in practise according to the Scriptures.
The mercy brings truth through the Holy Spirit. Mere letter can’t produce life of the Spirit. There also exist danger to follow the law instead of following of the Messiah. In other words follow the letter, but not receive the life, which makes teaching of the word alive in us and in the situations of the practice life.
2 Cor 3:6 Who also hath made us able ministers of the new testament; not of the letter, but of the spirit: for the letter killeth, but the spirit giveth life.
Ro 10:4 For Christ is the end of the law for righteousness to every one that believeth..
Goal of the law is not law, but Yeshua for righteousness to everyone, who believes.
The law is accessory to achieving that goal. But in the letter of the law is not power to achieve that goal. That's why Yeshua brought mercy and truth and the Holy Spirit, and through it we have power to live according to word of God. Like this comes true the goal of the law through the power of the Holy Spirit.
For us, who are believers, we have also that danger, that we can follow the law, but not Yeshua and we do from the law larger than its fulfilment, which is Yeshua the Messiah.
Yeshua is the grace
But lets follow Yeshua in the Holy Spirit from the grace of God, so then comes true will of God, in which the Holy Spirit makes from the law of living (teaching of the word of God), so that as the disciple of Yeshua the Messiah we can grow in the way how the word of God teaches us through the Holy Spirit.
As we read, that at the bottom of the ark of covenant was the tables of law, but above of law was mercy seat. And because grace and truth came through Lord Yeshua the Messiah. And out of fullness of Yeshua we all received, and grace on top of grace, Joh 1:16. So Yeshua is our grace and He is the goal of the law and He is greater than the law. Yeshua is fulfilment of the law, amen.
http://koti.phnet.fi/petripaavola/Mercy_of_God_is_above_the_law