Romans 9:7-9 ▼

7 Nor because they are Abraham’s descendants (seed) are they all his children. On the contrary, “Through Isaac (he will laugh) your offspring will be reckoned .”

8 So it is not the children of the flesh who are God’s {Theou} children, but it is the children of the promise who are regarded as offspring (seed).

9 For this is what the promise stated: “At the appointed time I will return, and Sarah (lady) will have a son .”