Romans 4:10

In what way? When he was a circumcised man or an uncircumcised man? Not when he was circumcised, but when he was uncircumcised.

1 Corinthians 7:18-19

Was a man circumcised at the time he was called? Then he is not to efface the marks of it. Has any man been called when he was uncircumcised? Then he is not to get circumcised.

Galatians 5:6

in Christ Jesus circumcision is not valid, neither is uncircumcision, but only faith active in love.

Galatians 6:15

For what counts is neither circumcision nor uncircumcision, it is the new creation.

Treasury of Scripture Knowledge

Summary

How was it then reckoned? when he was in circumcision, or in uncircumcision? Not in circumcision, but in uncircumcision.

Bible References

Not in circumcision

1 Corinthians 7:18
Was a man circumcised at the time he was called? Then he is not to efface the marks of it. Has any man been called when he was uncircumcised? Then he is not to get circumcised.
Galatians 5:6
in Christ Jesus circumcision is not valid, neither is uncircumcision, but only faith active in love.
Galatians 6:15
For what counts is neither circumcision nor uncircumcision, it is the new creation.