Romans 9:18-20

New Revised Standard Version, Anglicised Catholic Edition

¹⁸ So then he has mercy on whomsoever he chooses, and he hardens the heart of whomsoever 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 moulded say to the one who moulds it, ‘Why have you made me like this?’