Romans 9:14-21 (HCSB)
What should we say then? Is there injustice with God? Absolutely not! For He tells Moses: I will show mercy to whom I show mercy, and I will have compassion on whom I have compassion. So then it does not depend on human will or effort, but on God who shows mercy. For the Scripture tells Pharaoh: For this reason I raised you up: so that I may display My power in you, and that My name may be proclaimed in all the earth. So then, He shows mercy to whom He wills, and He hardens whom He wills. You will say to me, therefore, "Why then does He still find fault? For who can resist His will?" But who are you --anyone who talks back to God? Will what is formed say to the one who formed it, "Why did you make me like this?" Or has the potter no right over His clay, to make from the same lump one piece of pottery for honor and another for dishonor?
Romans 9:14-21