All one in Christ.
Gal. 2:16 Knowing that a man is not made righteous by works of law, but that it is through the faith of Jesus Christ (we also believed into Christ Jesus, that we may be justified through the faith of Christ and not by works of law, because all flesh will not be justified by works of law).
The text says in the Greek “we also believed into Jesus”(The Body of Christ the Temple of GOD) not in Jesus. Also note if you will it is through the faith of Jesus not by the faith of Jesus or faith in Jesus. That is why Galatians goes on to say, “For I, through law, died to law, that I should be living to God." I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God,." (Gal 2:19-20)
To further this point let's jump ahead to Gal 3:27 shall we? It says, "For as many of you as have been baptized into Christ have put on Christ."
So we put on, we believed into Christ. We have been baptized into His Death. We have been crucified with Him that the Body of sin be destroyed. Nevertheless we live; yet not us, but Christ liveth in us: and the life which we now live in the flesh we live by the faith of the Son of God.
Faith of Christ through Faith in Christ.
Why the Law then? It was added because of transgressions,until the Seed (The Faith, Christ’s; the Word, the Commandments manifested inthe flesh, our flesh) should come, to whom it had been promised. But beforeFaith (Christ’s) came, we were kept under the law, shut up unto the Faith(Christ’s) which should afterwards be revealed. Wherefore the law was ourschoolmaster (Law in general; the Pentateuch and all that is entailed, whichwould include the Decalogue; the Ten Commandments). to bring us unto Christ,that we might be made righteous out of faith. But after that faith is come, weare no longer under a schoolmaster (Law in general; the Pentateuch and all that is entailed, which would include the Decalogue; the Ten Commandments). Knowing that, that law is not laid down for a righteous one, but for lawless and undisciplined ones, for ungodly and sinful ones, for unholy and profane ones..... (1 Tim 1:9)
Which we are not through GOD IF Christ; the Word, the Commandments is manifested in the flesh, our flesh. So in other words there is no need for the written code and it's judgements if we are not breaking it; sinning.
For GOD has said, "Say not in thine heart, Who shallascend into heaven? (That is, to bring Christ, the Word, all that GOD wouldhave us be. HIS Commandments down from above Or, Who shall descend into the deep? (That is, to bring up Christ, theWord, all that GOD would have us be. HIS Commandments again from the dead.) Butwhat saith it? The word (Christ; the Word, the commandments manifested in theflesh, our flesh) is nigh thee, even in thy mouth, in thy heart, and in thyhand: that we may do it; that is, THE WORD OF FAITH, which we preach. And thatis the Gospel, the Kingdom of GOD (CHRIST) in you. For GOD hath said,"This is the covenant that I will make with them after those days, saiththe Lord, I will put my laws into their hearts, and in their minds will I writethem." And HE shall be our GOD and we shall be HIS people, for it is GODthat works in us both to will and do HIS good pleasure. Christ (the Word, HisCommandments, GOD's will) in us the hope of Glory. For without this faith it isimpossible to please GOD.
For God It was never about doing the written law. His intentin us has always been the Faith that worketh love. The following text show theconnection between the Old Testament and New. The verses in Romans 10:6-8;Deut. 30:11-14 ; Hebrews 8:10,11; Jeremiah 31:33 are all speaking of GOD's giftof enabling us through HIS Spirit to be as HE would have us be. Please noticethat this gift which is the Good News; the Gospel was availed to us from thebeginning of Moses ministry if not even from the time of the fall in Eden. For the LORD thy GOD will circumcise thy heart and the heart of thy seed with HIS commandments and statutes contained in the book of the Law. So let's walk in the Faith, HIS Grace has enabled us.