In truth, Salvation is correct, if the Holy Spirit did not work through St. Paul, we would not be here.
The Holy Spirit could have worked through the mouth of an donkey and we would be saved. (Num 22)
This shows the Roman Catholic error in holding up God’s mouthpieces as superior humans. Paul was a sinner, just like the rest of us.
Yeah, it's not like the Holy Spirit had someone else to use. There were no other people on the planet, I guess.
The rest of us have a bigger God than one who is hamstrung by people and their willingness to cooperate. We know enough Scripture to know that He can even use a donkey.