Romans 9:14-18

What shall we say then? Is there injustice with God? Certainly not! For He says to Moses, “I WILL HAVE MERCY ON WHOMEVER I HAVE MERCY, AND I WILL HAVE COMPASSION ON WHOMEVER I HAVE COMPASSION.” [Ex 33:19] So then God’s choice is not dependent on human will, nor on human effort [the totality of human striving], but on God who shows mercy [to whomever He chooses—it is His sovereign gift]. For the Scripture says to Pharaoh, “I RAISED YOU UP FOR THIS VERY PURPOSE, TO DISPLAY MY POWER IN [dealing with] YOU, AND SO THAT MY NAME WOULD BE PROCLAIMED IN ALL THE EARTH.” [Ex 9:16] So then, He has mercy on whom He wills (chooses), and He hardens [the heart of] whom He wills.