Romans 4:10

How then was it imputed to him? When he was circumcised? or uncircumcised? Not in circumcision, but in uncircumcision;

1 Corinthians 7:18-19

So, was any man called, being circumcised? Let him not become uncircumcised. Was any man called when he was uncircumcised? Let him not be circumcised.

Galatians 5:6

because in Christ neither circumcision has any value, nor uncircumcision, but faith which works through love.

Galatians 6:15

For in Jesus Christ neither is circumcision anything, nor uncircumcision, but a 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
So, was any man called, being circumcised? Let him not become uncircumcised. Was any man called when he was uncircumcised? Let him not be circumcised.
Galatians 5:6
because in Christ neither circumcision has any value, nor uncircumcision, but faith which works through love.
Galatians 6:15
For in Jesus Christ neither is circumcision anything, nor uncircumcision, but a new creation.