Romans 9:7-13

7and they are not all the children of Abraham because they are his descendants [by blood], but [the promise was]: “Your descendants will be named through Isaac” [though Abraham had other sons].

8That is, it is not the children of the body [Abraham’s natural descendants] who are God’s children, but it is the children of the promise who are counted as [Abraham’s true] descendants.

9For this is what the promise said: “About this time [next year] I will come, and Sarah shall have a son.”

10And not only that, but this too: Rebekah conceived twin sons by one man [under the same circumstances], by our father Isaac;

11and though the twins were not yet born and had not done anything either good or bad, so that God’s purpose [His choice, His election] would stand, not because of works [done by either child], but because of [the plan of] Him who calls them,

12it was said to her, “The older (Esau) will serve the younger (Jacob).”

13As it is written and forever remains written, “Jacob I loved (chose, protected, blessed), but Esau I hated (held in disregard compared to Jacob).”