1 Corinthians 7:19

But He said to them, “Not all men can accept this statement, but only those to whom it has been given.

and they have been told about you, that you are teaching all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children nor to walk according to the customs.

So if the uncircumcised man observes the righteous requirements of the Law, will not his uncircumcision be counted as circumcision?

For in Christ Jesus neither circumcision nor uncircumcision means anything, but faith working through love.

For neither is circumcision anything, nor uncircumcision, but a new creation.

a renewal in which there is no distinction between Greek and Jew, circumcised and uncircumcised, barbarian, Scythian, slave, and freeman, but Christ is all and in all.