Let me POST 1 Corinthians 1:10 for the lazy looker-uppers.
1 Corinthians 1:10
I appeal to you, brothers and sisters, in the name of our Lord Jesus Christ, that all of you agree with one another in what you say and that there be no divisions among you, but that you be perfectly united in mind and thought.
Golly; it looks like PAUL wrote it and there is no 'command', but an appeal.
So I guess the bottom line is...
...why aren't YOU agreeing with ME?
Oh, I see it was an appeal and not a command.
Lol, so Paul would have been fine if someone withdrew fellowship from the Corinthian Church and started a new denomination.
Got it.
Damn Rome for inserting Roman 16:17 into the Epistle to the Romans, Paul would never have written such a statement.