I think that's a great rule. It helps to educate those who argue the bible while having no knowledge of what is in it.
Galatians 1:8
But that doesn't actually address what you said:
"Anyone remember what Paul said?
I remember when Paul cursed anyone who would come after him preaching the good news. And this while he avoided the apostles who were with Christ during his ministry."
Gal 1:8 But even if we or an angel from heaven should preach to you
a gospel contrary to the one we preached to you, let him be accursed. (ESV)
So, firstly, we see that Paul was clearly speaking of anyone preaching "a gospel" that was "contrary to the one" that was already preached to them. Not once does Paul say or even imply that he was cursing "anyone who would come after him preaching the good news," as you claim.
So what was the issue?
Gal 1:6 I am astonished that you are so quickly deserting him who called you in the grace of Christ
and are turning to a different gospel—
Gal 1:7 not that there is another one,
but there are some who trouble you and want to distort the gospel of Christ. (ESV)
Some had already been there in the short time since Paul had left and were distorting the gospel. The rest of Galatians shows that it was Judaizers that were the problem, teaching that they all needed to follow the Law, particularly circumcision, in order to be saved. Paul soundly refutes that with the true gospel.
Secondly, no where does Paul indicate that he avoided the apostles in a negative sense, as you claim. He simply says that he didn't go talk to them
at first. But talk to them he did--1:18; 2:1-14.
That is indeed patently false. Unless you have proof of what you claim.
How much proof do you want? There are numerous scholarly books on this matter that confirm what I have said. It's history.
There are also other numerous early church writings, which came after the NT writings, that also show these things were being taught through writings.
The books of the NT were completed prior to AD 100, the Council of Nicaea was in AD 325, and there were many writings in between.
No they didn't. Which is why Roman emperor Constantine convened the council to arrive in Nicea and come to an agreement being there were multiple versions of Jesus teachings being taught about the land.
There were perhaps two main versions, the biblical one and monarchianism, as put forward by Arius. But the majority of the 300 bishops upheld the biblical version, that Jesus is divine.