“How was it then reckoned? when he was in circumcision, or in uncircumcision? Not in circumcision, but in uncircumcision.”
King James Version (KJV)
4:10 Not in circumcision - Not after he was circumcised; for he was justified before Ishmael was born, #Gen 15:1 |- 21; but he was not circumcised till Ishmael was thirteen years old, #Gen 17:25|.
Ro 4:10 How was it then reckoned? To settle the question, whether this blessedness applies to Gentiles as well as Jews, the inquiry is made whether Abraham was a Jew or Gentile when it was said of him, "His faith was counted for righteousness" (Ro 4:5). He was not circumcised for at least fourteen years after this statement was made of him. Compare Ge 15:6 with Ge 17:25. He was then justified, without circumcision, while yet a Gentile.