Romans 9:11-18

for the children 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 that calleth, it was said unto her, The elder shall serve the younger. Even as it is written, Jacob I loved, but Esau I hated. What shall we say then? Is there unrighteousness with God? God forbid. For he saith to Moses, I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion. So then it is not of him that willeth, nor of him that runneth, but of God that hath mercy. For the scripture saith unto Pharaoh, For this very purpose did I raise thee up, that I might show in thee my power, and that my name might be published abroad in all the earth. So then he hath mercy on whom he will, and whom he will he hardeneth.