Since Abraham is the Father of Circumcision, it never hurts to study the subject of circumcision starting with him... When Abram was ninety-nine years old, the LORD appeared to him and said, “I am God Almighty ; walk before me faithfully and be blameless. With these words God and Abram entered into a relationship and Abram's part is to walk in God's Laws, commandments, statutes and be circumcized.
So everyone entering into the same covenantial relationship with God that Abram had are also to follow in his footsteps.
So now that we have the background covered on the subject of circumcision, let us deal with Gentiles wanting to be in the Abram covenant and how they are to understand circumcision.
One of the greatest problems Paul had to deal with is outwards acts does not fool God. You can not substitute the act of getting a circumcision in place of obedience to the Law of God, because if you break the Law of God, then you were circumcized for nothing.
As you see from this verse, the reverse is also true. If you are obedient to the Law of God, and are not circumcized you are better off.
It will always be the inward faith and obedience towards God's Law that will be counted as righteousness.
So what value is there in circumcision in today's world, where it looks like laws are being placed on the books to make it illegal?
It is still a sign of righteousness, a seal of the covenant relationship between the children of Abram and God. As Paul puts it...
It is not the outward sign of circumcision, it is the keeping of God's commandments that counts.
You see, you can run into people who have had the circumcision done, but whose lives show no indication that the have the heart and love that God's commandments are to form in righteous living.
And Paul is exactly right about this. In His day, the use and abuse of the covenant sign to impress and to boast about is foolishness, because that was not its purpose. It was to be a reminder of the covnenant itself, which is to keep the Commandments of God.
And this is why Paul can say... in the bigger scheme of things.. what counts most is..
So let it be you who says..
Let this be your understanding
and let us not..