Because it matters not what happened after Paul left when all you false teachers popped up.
Acts 20:27-30
For I have not shunned to declare unto you all the counsel of God.
Take heed therefore unto yourselves, and to all the flock, over which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.
For I know this, that
after my departing shall grievous wolves enter in among you, not sparing the flock.
Also
of your own selves shall men arise, speaking perverse things, to draw away disciples after them.
The RCC is an example of what NOT to believe as they teach doctrines of demons and the darkened wisdom of fallen man as though it were the wisdom of the Lord.
Jesus and His Apostles never taught anyone to practice idolatry by praying to His momma
View attachment 72822
No, actually it was the Lord Jesus thru the Holy Spirit that had all the extra books of heresies removed that the catholic cult tried to add in.
The RCC claims they know better than the Lord Jesus
That's because the RCC is led by devils.