But if our unrighteousness brings out God's righteousness more clearly, what shall we say? That God is unjust in bringing his wrath on us? (I am using a human argument.)
NIV
But if our unrighteousness thus establishes and exhibits the righteousness of God, what shall we say? That God is unjust and wrong to inflict His wrath upon us [Jews]? I speak in a [purely] human way.
AMP
But if our unrighteousness commend the righteousness of God, what shall we say? Is God unrighteous who taketh vengeance? (I speak as a man)
KJV