Romans 4:11-18

And he received the sign of circumcision as a seal of the righteousness of the faith which he had in uncircumcision: that he might be the father of all that believe though not circumcised, that righteousness may be imputed to them also:

Galatians 3:28-29

and there is neither Jew nor Greek, those is neither bond nor free, there is neither male nor female; for ye are all one in Christ Jesus.

Treasury of Scripture Knowledge

Summary

As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.

Bible References

A father

Romans 4:11
And he received the sign of circumcision as a seal of the righteousness of the faith which he had in uncircumcision: that he might be the father of all that believe though not circumcised, that righteousness may be imputed to them also:
Galatians 3:28
and there is neither Jew nor Greek, those is neither bond nor free, there is neither male nor female; for ye are all one in Christ Jesus.