Not everyone is under the Law given to Mose's.
For as many as have sinned without law shall also perish without law: and as many as have sinned in the law shall be judged by the law;
Circumcision is part of the Law, why don't Christians have to follow it?
For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision.
Therefore if the uncircumcision keep the righteousness of the law, shall not a man's uncircumcision be counted for circumcision?
And shall not uncircumcision which is by nature, if it fulfil the law, judge thee, who by the letter and circumcision dost transgress the law?
For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh:
But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter of the law; whose praise is not of men, but of God.
What advantage then hath the Jew? or what profit is there of circumcision?
Much every way: chiefly, because that unto them were committed the oracles(an utterance) of God.
Christians are NOT under the Law but Grace. Grace was the completion of the Law.
Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.
Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
But now
the righteousness of God
without the law
is manifested,
being witnessed
by the law
and the prophets;
Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference:
For all have sinned, and come short of the glory of God;
Being justified freely by his grace through the redemption that is in Christ Jesus:
Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;
To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.
Where is boasting then? It is excluded. By what law? of works? Nay: but by the law of faith.
Therefore we conclude that a man is justified by faith without the deeds of the law.