If you can't explain who the 'we' in Romans 7:6 is then how can you say that practicing the Law of Moses is Not for the non-Jew let alone For the Jew only?
You appear to believe that the ruling of the Council was a ruling that effected what the Jewish Christians did. It didn't.
So if you are trying to use it to state that the Jews still had to follow the Law of Moses because of this ruling, you are mistaken. They have nothing to do with each other.
In Romans 7 Paul says that the LAW defines sin for "US" and in Gal 3 and Romans 3 - Paul says that the "US" in that case is "the entire world".
The condemnation of the LAW is the reference for Romans 7:6.
And as for Romans 6 --
Who is the "WE" in Romans 6? The context for Romans 7.
Did this get answered - on the way to Romans 7???
1. What shall we say then?
Shall we continue in sin, that grace may abound?
2 God forbid.
How shall we, that are dead to sin, live any longer therein?
3 Know ye not, that
so many of us as were baptized into Jesus Christ were baptized into his death?
4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even
so we also should walk in newness of life.
5 For if we have been planted together in the likeness of his death, we shall be also in the likeness of his resurrection:
6 Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
7 For he that is dead is freed from sin.
8 Now if we be dead with Christ, we believe that we shall also live with him:
9 Knowing that Christ being raised from the dead dieth no more; death hath no more dominion over him.
10 For in that he died, he died unto sin once: but in that he liveth, he liveth unto God.
11 Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.
12
Let not sin therefore reign in your mortal body, that ye should obey it in the lusts thereof.
13 Neither yield ye your members as instruments of unrighteousness unto sin: but yield yourselves unto God, as those that are alive from the dead, and your members as instruments of righteousness unto God.
14 For
sin shall not have dominion over you: for ye are not under the law, but under grace.
15 What then?
shall we sin, because we are not under the law, but under grace?
God forbid.
16 Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness?
17 But God be thanked, that ye were the servants of sin, but ye have obeyed from the heart that form of doctrine which was delivered you.
18 Being then made free from sin, ye became the servants of righteousness.