Romans 9:7-9 nor are they all children of Abraham because they are descended from him, but he was told, "The line of Isaac will be called your descendants."

Goodspeed⁽ⁱ⁾ ⁷ nor are they all children of Abraham because they are descended from him, but he was told, "The line of Isaac will be called your descendants." ⁸ That is to say, it is not his physical descendants who are children of God, but his descendants born in fulfilment of the promise who are considered his true posterity. ⁹ For this is what the promise said: "When I come back at this time next year, Sarah will have a son."