Romans 9:15-18

Common(i) 15 For he says to Moses, "I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion." 16 So it depends not upon man's will or exertion, but upon God's mercy. 17 For the scripture says to Pharaoh, "I have raised you up for this very purpose, that I may show my power in you, and that my name may be proclaimed in all the earth." 18 Therefore he has mercy on whom he wills, and he hardens the heart of whom he wills.