The law has faded, become obsolete, passing,
God's righteousness is eternal (Psalms 119:142, therefore all of God's righteous laws are also eternal (Psalms 119:160).
In Matthew 27:37, they nailed a handwritten ordinance to Christ cross that announced the charge that was against him that he was the King of the Jews. This fits perfectly the the concept of the charge that was against us being nailed to Christ's cross and with him dying in our place in order to pay the penalty for our sins, but had nothing to do with nailing any laws to the cross.
It is not binding on anyone within the context of Christianity. Following the mosaic law for any other reason that "you feel like it" is abject heresy in the Christian realm.
In Matthew 4:15-23, Christ began his ministry with the Gospel message to repent for the Kingdom of God is at hand, which was a light to the Gentiles, and the Mosaic Law was how his audience knew what sin is (Romans 3:20), so repenting from our disobedience to it is a central part of the Gospel of the Kingdom. Christ also set a sinless example for us to follow of how to walk in obedience to the Mosaic Law and as his followers to we are told to follow his example (1 Peter 2:21-22) and that those who are in Christ are obligated to walk in the same way that he walked. So Christ seen this ministry teaching his followers to obey the Mosaic Law by word and by example and Christianity is about following what Christ taught, not about refusing to follow him.
2 Cor 3:15 : But even to this day, when Moses is read, a veil lies on their heart.
The veil was preventing people from seeing that the goal of everything in Scriptures was to testify about how to know Jesus, which is preventing you from seeing the same thing.
We no longer need a schoolmaster now that Jesus has come.
Someone who disregarded everything that their schoolmaster taught them after they graduated would be missing the whole point of a schoolmaster. Christ did not begin his ministry with the message to stop repenting because God's law has ended now that he has come, but just the opposite.
We cannot do anything that makes us righteous, that is what Jesus did for us on the cross.
While the only way for someone to attain a character trait is through faith, what it means for someone to attain a character trait is for them to become a doer of that trait. For example, the only way for someone to become courteous is through faith apart from being required to have first done enough courageous works in order to earn courageousness as the result, but it would be contradictory for someone to become courageous apart from becoming a doer of courageous works, and the same is true for righteousness and every other character trait. This is why the same faith by which we are declared righteous apart from works does not abolish our need to be a doer of righteous works in obedience to God's law, but rather our faith upholds it (Romans 3:28-31).
In Titus 2:14, Jesus gave himself to redeem us from all lawlessness and to purify for himself a people of his own possession who are zealous for doing good works, so the way to believe in what Jesus spent his ministry teaching by word and by example and in what he accomplished through the cross is by repenting and becoming zealous for doing good works in obedience to the Mosaic Law (Acts 21:20).
Further:
GAL 3:17 : This is what I mean: the law, which came 430 years afterward, does not annul a covenant previously ratified by God, so as to make the promise void.
We (Believers in Christ) are the Children of the (Abrahamic) Promise and have nothing to do with the mosaic law other than historical reference.
The Law was given only to Israel, and only for a specific reason and for a period of time.
The Hebrew word “yada” refers to intimate knowledge gained through experience, such as in Genesis 4:1, Adam knew (yada) Eve, she conceived, and gave birth to Cain. The Bible begins and ends in the Garden with the Tree of Life and the goal of everything in between is to teach us the way back to it, or in other words, the goal of everything in the Bible is to teach us how to know (yada) God and Jesus, which is His gift of eternal life (John 17:3). God’s way is the way to know (yada) Him by being in His likeness through experiencing being a doer of His character traits, such as in Genesis 18:19, God knew (yada) Abraham that he would teach his children and those of his household to walk in God’s way by being a doer of righteousness and justice that the Lord might bring to him all that He has promised. In Exodus 33:13, Moses wanted God to be gracious to him by teaching him to walk in His way that he and Israel might know (yada) Him, in 1 Kings 2:1-3, God taught how to walk in His way through His law, and in Matthew 7:23, Jesus said that he would tell those who are workers of lawlessness to depart from him because he never knew them, so the goal of the law is to teach us how to know (yada) God and Jesus, which is eternal life.
The Gospel of the Kingdom that Jesus taught in Matthew 4:15-23 is in accordance with him being sent in fulfillment of the promise to bless us by turning us from our wickedness (Acts 3:25-26), which is the Gospel that was made known in advance to Abraham in accordance with the promise (Galatians 3:8), and which he spread to those in Haran in accordance with the promise (Genesis 12:1-5).
In Genesis 26:4-5, God will multiply Abraham’s children as the stars in the heavens, to his children He will give all of these lands, and through his children all of the nations of the earth will be blessed because he heard God’s voice and guarded His charge, commandments, statues, and laws. In Deuteronomy 30:16, if the children of Abraham will love God with all of their hearts by walking in His way in obedience to His commandments, statues, and laws, then that will live and multiply and God will bless them in the land that they go to possess. So the promise was made to Abraham and brought about because he walked in God’s way in obedience to His law, he taught his children and those of his household to do that in accordance with spreading the Gospel of the Kingdom, and because they did that. In John 8:39, Jesus said that if they were children of Abraham, then they would be doing the same works as him, so the way that the children of Abraham are multiplied and are a blessing to the nations in accordance with inheriting the promise through faith is by turning the nations from their wickedness and by teaching them to do the same works as Abraham by walking in God’s way in obedience to His law in accordance with spreading the Gospel of the Kingdom.
"Olam" often translated in English as Forever, is a Hebrew word that means long duration, antiquity, or futurity. It does not specifically mean "forever" as we understand it. Hebrew Roots and other Torahism beliefs seems to ignore this.
"Olam" can refer either to forever or to a long duration. Do you think that God's righteous is forever or just for a long duration?
Jesus is our high priest; he is not a Levite. Thus, NO LEVITCAL LAW.
A priesthood that is headed by God's word made flesh should be considered to be in accordance with God's word, not to be rejecting it.