Romans 9:13

10 Not only so, but Rebecca also conceived by one, by our father Isaac.

11 For being not yet born, neither having done anything good or bad, that the purpose of God according to election might stand, not of works, but of him who calls,

12 it was said to her, "The elder will serve the younger."

13 Even as it is written, "Jacob I loved, but Esau I hated."

14 What will we say then? Is there unrighteousness with God? Certainly not!

15 For he said to Moses, "I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion."

16 So then it is not of him who wills, nor of him who runs, but of God who has mercy.