Romans 9:18-20 New Revised Standard Version (NRSV)
18 So then he has mercy on whomever he chooses, and he hardens the heart of whomever he chooses.
God’s Wrath and Mercy
19 You will say to me then, “Why then does he still find fault? For who can resist his will?” 20 But who indeed are you, a human being, to argue with God? Will what is molded say to the one who molds it, “Why have you made me like this?”