What traditions was Paul referring to that HE passed down to the believers at the churches to which he wrote?
How do you know what they were? Who did he pass them down to? Where is that recorded?
What is your source for the information?
This is why Jesus commissioned the Church to teach!!! Then you would know the answers to your questions. Jesus never said give everyone a copy of the Scriptures and then let them all figure it out for themselves, did He???
i’ll give you one, infant baptism. All the Church Fathers say the Church received the practice of baptizing infants from the Apostles, but there is not a verse explicitly saying so. Protestants are divided on this! Is infant baptism correct or not? You don’t know, you by yourself can’t know, unless you believe yourself infallible!! I can get a Lutheran say yes, a Baptist says no! Both will claim to follow “sola scriptura” no friend, Jesus is not the author of confusion, He left us a Church to teach!!