Ok, so you don’t believe Paul was speaking authoritatively for God, and I do.
If you believe the OT, then, certainly you believe that we are all descended from Adam, so we are all “one blood” in the sense that Noah Webster construed that to mean.
Ergo, Paul was speaking correctly in saying what he did, basing it, as he did, on the Creation Story to which he explicitly referred in Acts 17:24-25.
Therefore, I submit that Paul was speaking authoritatively, basing his assertions on the Creation Story in Genesis.
We share a common ancestry with Adam, but, NOT of ‘one blood’, or we wouldn’t have so many blood types. We know things now that Paul didn’t know back then. The dictionary gives meaning to words in today’s context, but, with the Bible different nuances come into play depending on the language, nation and time it was used. The Concordance is a better gauge, especially when one takes into account that some words are translations and some words are transliterations and they are two very different things.
Paul was not speaking for God, and he never walked with or spoke with Yehoshua/Jesus in real life and Paul taught things that were opposed to the teachings of Yehoshua, which is why James the successor of Yehoshua had Paul brought before the Jerusalem Council. So, no I don’t credit Paul with any authority. He spoke out of both sides of his face like modern politicians, trying to be all things to all men, which he even tells you in his very own words.
1 Corinthians 9:19-23
19 For though I be free from all men, yet have I made myself servant unto all, that I might gain the more.
20 And unto the Jews I became as a Jew, that I might gain the Jews; to them that are under the law, as under the law, that I might gain them that are under the law;
21 To them that are without law, as without law, (being not without law to God, but under the law to Christ,) that I might gain them that are without law.
22 To the weak became I as weak, that I might gain the weak: I am made all things to all men, that I might by all means save some.
23 And this I do for the gospel’s sake, that I might be partaker thereof with you.
Romans 3:7
7 For if the truth of God hath more abounded through my lie unto his glory; why yet am I also judged as a sinner?
2 Corinthians 12:15-16
16 But be it so, I did not burden you: nevertheless, being crafty, I caught you with guile.
Typical lying, deceitful, two faced politician.
I’m done with this discussion, to continue leads us further into areas that this thread was not posted for.