Q&A: Romans 4:16 — is it about saving faith? Is Abraham a prototype for saving faith?

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.' Mike says this is about both saving faith and specific promises given to Abraham. Not everyone's saving faith involves believing the same specific Abrahamic promises, but Abraham is clearly held up as the prototype for how humans are saved by faith.