Nice personally-contrived esoteric distinction to separate oneself from those inferior believers in Jesus Christ.
The law is not just circumcision. The law is also the ceremonial (Levitical) laws, as well as the Decalogue.
None of them justifies.
In justification, Paul opposes meritorious works of all law to the free gift of grace, clearly stated in Gal 5:4:
Christ is of no effect to whomsoever seeks to be justified by the law; i.e., the law excludes grace, and grace excludes the law in salvation and justification.
Whoever relies on the law has thereby excluded (fallen from) grace, and there is no salvation nor justification by any law keeping (Gal 5:4).
What is it you always say? Something about no biblical demonstration. Look in the mirror: you are simply making stuff up and using scripture as if it says what you say it says. It doesn't.
Moreover Paul does not speak, write, and teach in a vacuum: one of the reasons I made sure to include Gal 5:9 at the end of my previous post is because it is a form of remez, a hint or a pointer to a specific passage.
Paul teaches the commandments of the Master:
1 Corinthians 14:36-37 KJV
36 What? came the word of God out from you? or came it unto you only?
37 If any man think himself to be a prophet, or spiritual, let him acknowledge that
the things that I write unto you are the commandments of the Lord.
Galatians 5:7-9 KJV
7 Ye did run well; who did hinder you that ye should not obey the truth?
8 This persuasion cometh not of him that calleth you.
9
A little leaven leaveneth the whole lump.
It is therefore about doctrine, and that is, specifically, about the doctrine of the Pharisees:
Luke 12:1 KJV
1 In the mean time, when there were gathered together an innumerable multitude of people, insomuch that they trode one upon another, he began to say unto his disciples first of all,
Beware ye of the leaven of the Pharisees,
which is hypocrisy.
Matthew 16:5-12 KJV
5 And when his disciples were come to the other side, they had forgotten to take bread.
6 Then Jesus said unto them,
Take heed and beware of the leaven of the Pharisees and of the Sadducees.
7 And they reasoned among themselves, saying, It is because we have taken no bread.
8 Which when Jesus perceived, he said unto them, O ye of little faith, why reason ye among yourselves, because ye have brought no bread?
9 Do ye not yet understand, neither remember the five loaves of the five thousand, and how many baskets ye took up?
10 Neither the seven loaves of the four thousand, and how many baskets ye took up?
11
How is it that ye do not understand that I spake it not to you concerning bread,
that ye should beware of the leaven of the Pharisees and of the Sadducees?
12
Then understood they how that he bade them not beware of the leaven of bread,
but of the doctrine of the Pharisees and of the Sadducees.
If you view circumcision as outward and physical then you hold the same doctrine as the Pharisees and Sadducees. Moreover if you hold that view of the commandments in the Torah, concerning circumcision, then you are admonished to follow through with the same outward physical view of all things so that you not be a hypocrite side-winding back and forth between the natural, outward, and physical view, and the supernal and spiritual view which is of above and taught in the Testimony of the Meshiah in the Gospel accounts. That would be no different than having one foot in the world, and one foot in the heavenly things, a double standard, and that is likely why the Master also says, either make the tree good, (one type of understanding, spiritual), or make the tree evil, (the other way of understanding, outward, natural, and physical, which is to choose death). And while Paul indeed says that the Torah is spiritual, again Romans 7:14a, nowhere does he or anyone else say that the Torah
is sometimes spiritual and sometimes outward and physical in meaning.
Therefore, if you choose the Pharisee doctrine when it comes to understanding the commandments in the Torah concerning circumcision, then you are obligated to view the whole Torah in the same outward and physical way of understanding the Torah, and therefore, just as Paul says, Meshiah profits you nothing because it is his Testimony in the Gospel accounts which teaches the supernal and spiritual way that was rejected by the Pharisees, Sadducees, and Scribes.