Romans 4:10

How then was it so accounted? After his circumcision, or while he was uncircumcised? Not after he was circumcised, but while he was uncircumcised.

1 Corinthians 7:18-19

Was any one called being circumcised, let him not become as if uncircumcised; hath any one been called in uncircumcision, let him not become circumcised.

Galatians 5:6

For in Christ Jesus neither circumcision availeth anything, nor uncircumcision; but faith working by love.

Galatians 6:15

For 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
Was any one called being circumcised, let him not become as if uncircumcised; hath any one been called in uncircumcision, let him not become circumcised.
Galatians 5:6
For in Christ Jesus neither circumcision availeth anything, nor uncircumcision; but faith working by love.
Galatians 6:15
For neither is circumcision anything, nor uncircumcision, but a new creation.