The letters to the Romans, the Corinthians and the Galatians were written by Rabbi Sha'ul of Tarsus, a Pharisee, the leading Messianic rabbi. They were written after the Age of Grace began. Some excerpts follow.
A detailed study of the Scriptures and of history shows that God deals with man in a series of dispensations. Each dispensation begins with a new revelation from God. God modifies the rules governing behavior, tests man for obedience, and ultimately judges man for disobedience.
In addition to dispensations, God has dealt with some or all of mankind in a series of covenants:
Several schools of interpretation have arisen within mainstream Protestant theology: Dispensationalism, (one can believe in dispensations without believing in Dispensationalism (1)), Replacement Theology and Covenant Theology. All hold the view that mankind is now under grace and the Law no longer applies.
Passages such as these are offered as support:
1 Corinthians 9:20 To the Jews I became like a Jew, to win the Jews. To those under the law I became like one under the law (though I myself am not under the law), so as to win those under the law.
Romans 7:4-6  So, my brothers, you also died to the law through the body of Christ, that you might belong to another, to him who was raised from the dead, in order that we might bear fruit to God.  For when we were controlled by the sinful nature, the sinful passions aroused by the law were at work in our bodies, so that we bore fruit for death.  But now, by dying to what once bound us, we have been released from the law so that we serve in the new way of the Spirit, and not in the old way of the written code.
Romans 8:1-4  Therefore, there is now no condemnation for those who are in Christ Jesus,  because through Christ Jesus the law of the Spirit of life set me free from the law of sin and death.  For what the law was powerless to do in that it was weakened by the sinful nature, God did by sending his own Son in the likeness of sinful man to be a sin offering. And so he condemned sin in sinful man,  in order that the righteous requirements of the law might be fully met in us, who do not live according to the sinful nature but according to the Spirit.
Romans 10:3-4  Since [the Israelites] did not know the righteousness that comes from God and sought to establish their own, they did not submit to God's righteousness.  Christ is the end of the law so that there may be righteousness for everyone who believes.
Galatians 2:15-16  We who are Jews by birth and not 'Gentile sinners'  know that a man is not justified by observing the law, but by faith in Jesus Christ. So we, too, have put our faith in Christ Jesus that we may be justified by faith in Christ and not by observing the law, because by observing the law no one will be justified.
Proverbs 28:9 If anyone turns a deaf ear to the law, even his prayers are detestable.
If Yeshua ended the Law, why do Christians still teach the Ten Commandments ???
Messianic Judaism believes in: LAW UNDER GRACE