Romans 4:1

He started with a rhetorical question that he used often in Romans (cf. Romans 6:1; Romans 7:7; Romans 8:31; Romans 9:14; Romans 9:30): "What then shall we say?" By referring to Abraham as "our forefather after the flesh" (Romans 4:1) Paul revealed that he was aiming these comments at his Jewish readers primarily. Abraham’s case is significant for Gentiles as well, however, because in another sense, as the father of the faithful, he is the father of "us all" (Romans 4:16). "All" refers to all believers, Jews and Gentiles alike.