John Chrysostom
The Apostle removes one false inference by another. Since this is not clear, it must be stated more plainly. What, then, does the Apostle say?
God honored the Jews, and they insulted Him. Yet this constitutes His victory and proves His great love for mankind, because He honored even people so ungrateful.
But the Jew says: since God prevailed, and His righteousness shone forth in full splendor because we insulted Him and acted unjustly, why then am I punished, when I became the cause of His victory precisely by insulting Him?
How does the Apostle resolve this? By another false inference, as I said. If you became the cause of God's victory and then are punished, this is unjust.
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But if God is not unjust, and yet He punishes you, then you have not become the cause of His victory. Notice the Apostle's reverence. Having said, “Is God unjust who inflicts wrath?” he added: “I speak as a man.”
Anyone would say this, says the Apostle, when reasoning according to human understanding. Yet the righteous judgment of God incomparably surpasses what appears just to us, and has other reasons incomprehensible to us.
Then, since this was not completely clear, he says the same thing a second time: “For if the truth of God has abounded through my lie to His glory, why am I still judged as a sinner?” (Rom 3:7).