Romans 9:10-16

10Not only that, but Rebecca’s children were conceived by one man, our father Isaac. 11Yet before the twins were born or had done anything good or bad, in order that God’s plan of election might stand, 12not by works but by Him who calls, she was told, “The older will serve the younger.”1 13So it is written: “Jacob I loved, but Esau I hated.”2

14What then shall we say? Is God unjust? Certainly not! 15For He says to Moses:

16So then, it does not depend on man’s desire or effort, but on God’s mercy.