By the time Marcion came on the scene, the entire bible had been preached to countless people in the known world...
God said he'd preserve his words...I don't see anywhere in the scriptures where Jesus told the apostles and desciples, 'Good luck figuring all this out'...And I didn't see where Jesus told anyone they would be leaderless in knowing what to teach and preach for a few hundred years when the Catholic religion would figure it out for him and let them know...
“told anyone they would be leaderless in knowing what to teach and preach for a few hundred years when the Catholic religion would figure it out for him”
You’re right about that. Which is why the Catholic church teaches Apostolic succession - that the authority of the magisterium derives from the Apostles. The Apostles ordained bishops who ordained other bishops and so on and so forth.
The question I have for you - is if you sincerely believe that the children of God would not be left leaderless, how do you cross that 15 hundred year gap between Christ and Luther? I’m curious.