Romans 9:14
14What shall we say then? Is there unrighteousness with God? May it never be!
The objection follows Jacob and Esau (vv. 10–13). Wesley: is it unjust in God to give Jacob the blessing rather than Esau? or to accept believers, and them only? God forbid. He has a right to fix the terms on which he will show mercy.
Do not flatten this into Calvin’s unconditional pick of persons. Arminian readers hear nations and ways of dealing together: God may choose the line of promise and the terms of the people, and He may accept those He foreknows will believe. By no means defends that right. It does not make God the author of anyone’s unbelief. Individuals still resist—Romans 9:30–32 will say so in plain speech.
Paul has just cited “Jacob I loved, but Esau I hated.” The charge is that such distinguishing love is unrighteousness with God? May it never be. God’s righteousness is not a duty to distribute saving mercy equally.
Reformed reading does not take the no as a retraction into mere national policy or published terms. The question arises because the purpose of election (v. 11) looked personal. Calvin’s track: God may distinguish persons without becoming unjust. Verses 15–18 will locate mercy and hardening in God’s will, matching the unconditional personal choice of Ephesians 1:3–6.