Romans 4:16

That is why it depends on faith , in order that the promise may rest on grace and be guaranteed to all his offspring — not only to the adherent of the law but also to the one who shares the faith of Abraham , who is the father of us all ,

Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham`s offspring—not only to those who are of the law but also to those who have the faith of Abraham. He is the father of us all.

Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,