It is blessed to see the Old Testament truths corresponding with New Testament doctrines. Both the circumcised and the uncircumcised are all one in Christ Jesus. And without him, neither circumcision nor uncircumcision, availeth anything. Galatians 6:15; Galatians 3:26 to the end.
Related Commentaries of Jeremiah 9:25
Jeremiah 9:25-26
25 Behold, the days come, saith the LORD, that I will punishg all them which are circumcised with the uncircumcised;
26 Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that are in the utmosth corners, that dwell in the wilderness: for all these nations are uncircumcised, and all the house of Israel are uncircumcised in the heart.