Romans 4:12-15

And it means further that Abraham is father of all people who embrace what God does for them while they are still on the “outs” with God, as yet unidentified as God’s, in an “uncircumcised” condition. It is precisely these people in this condition who are called “set right by God and with God”! Abraham is also, of course, father of those who have undergone the religious rite of circumcision not just because of the ritual but because they were willing to live in the risky faith-embrace of God’s action for them, the way Abraham lived long before he was marked by circumcision. That famous promise God gave Abraham—that he and his children would possess the earth—was not given because of something Abraham did or would do. It was based on God’s decision to put everything together for him, which Abraham then entered when he believed. If those who get what God gives them only get it by doing everything they are told to do and filling out all the right forms properly signed, that eliminates personal trust completely and turns the promise into an ironclad contract! That’s not a holy promise; that’s a business deal. A contract drawn up by a hard-nosed lawyer and with plenty of fine print only makes sure that you will never be able to collect. But if there is no contract in the first place, simply a promise—and God’s promise at that—you can’t break it.