Ah, we’ve reached the “May it never be” part of Romans. Every time you turn around, Paul is asking a rhetorical question, then answering himself: “May it never be! Rather, this other thing.” He seems to be anticipating arguments, but to be honest, I can’t imagine any sane human making these objections. Why would a human’s unfaithfulness nullify the faithfulness of God? Why would a person do evil in order that good may come, when they could be doing good that good may come? As the chapter opens, it appears that Paul is addressing the question of what good it is to be a Jew, if Jews and Gentiles alike have failed to keep God’s Law as revealed to the Jews, but then he starts going all over the place and I can’t follow his line of thinking.