It is not as though God’s word has failed. For not all who are descended from Israel are Israel. Nor because they are Abraham’s descendants are they all his children. On the contrary, “Through Isaac your offspring will be reckoned.” So it is not the children of the flesh who are God’s children, but it is the children of the promise who are regarded as offspring. Romans 9: 6-8
It is not as though God’s word has failed. For not all who are descended from Israel are Israel. Nor because they are Abraham’s descendants are they all his children. On the contrary, “Through Isaac your offspring will be reckoned.” So it is not the children of the flesh who are God’s children, but it is the children of the promise who are regarded as offspring. Romans 9: 6-8