Here’s a short, off-the-cuff stab. First I would say that the verses from Titus you cited - 3:10-11 are associated with an interesting preamble in verse 9:
"9 But avoid foolish controversies, genealogies, dissensions, and quarrels about the law, for they are unprofitable and worthless. "
I say interesting because, clearly Paul himself didn’t TOTALLY avoid controversy (or certainly quarrels about the law). From Galatians 2:11-12:
“11 But when Cephas came to Antioch, I opposed him to his face, because he stood condemned. 12 For before certain men came from James, he was eating with the Gentiles; but when they came he drew back and separated himself, fearing the circumcision party.”
But combine
Paul’s instruction to Bp Titus, on
αἱρετικὸν hairetikos , Be sure to Open the link to see the offense, that Paul is addressing.
And
the Context in Galatians, addressing Peter not eating with the (the circumcision party) who came from James, because they insisted on circumcising gentiles, (newbies) to the faith. In the council of Jerusalem, (Acts ) Peter said circumcision was not necessary. And it shows Peter was trying to pastor the gentiles, while the Judaiszers were causing major issues with the newbies to the faith.
in extension
Peter pastored newbies in their faith, and out of fear that he might lose them, did what he did (not eat with the circumcision party) so like the Good Shepherd, would not lose ANYONE given to him.
One needs to ask then
what did Paul do?
Acts 16:1-3 Paul took a disciple named Timothy… and on account of the Jews of that region, (the circumcision party that came from James) Paul had Timothy a gentile, circumcised. Then
Acts 18:18, & Acts 21: 18-26 Paul shaved his head, purified himself and made sacrifice according to the Mosaic law, which he had previously said is no longer to be followed AND he had Timothy a gentile circumcised.
Catch that?
Paul rebukes Peter for not eating with those in the (circumcision party)while giving himself a pass on WAY MORE
stuff. (I like using heavy duty deep terms)
So
Paul actually learned from Peter in this whole exercise
How you say
because Paul later in his travels explains HIS behavior by saying, to the Gentiles he becomes as a Gentile, to win them over, as to the Jews he became a Jew so that some might be saved. [1 cor 9:20] Hey… Isn’t that exactly what Peter did earlier with the gentiles and was rebuked by Paul for it? Yes. And Paul embraces this behavior for himself..
TULIPed:
“But in subsequent centuries much more serious dissensions made their appearance and quite large communities came to be separated from full communion with the Catholic Church - for which, often enough, men of both sides were to blame.”
Yet Jesus wants perfect union with. ZERO divisions. And the consequences mentioned for that division, in scripture, I wanted your opinion on.