Just what are those traditions Paul was referring to that he handed down that we are to keep that were not included in Scripture?
How do you know?
How do you know they’re from the apostles, Paul in particular?
How do you know they’ve been passed down faithfully?
What is your source for verifying all of the above?
Please provide the sources for verification purposes.
I have never seen any verification from Catholics on those, have you?
What does Jesus say in Scripture?
Listen to the Church.
But this begs the question, How can we trust Scripture?
We can trust the Scriptures because they are given to us by the Church.
Yes, this is a circular argument... so far.
(R.C. Sproul recognized this conundrum, saying, "The Bible is a fallible collection of infallible books.")
But Sproul was wrong. We can escape the circle.
First, begin with the uncontroversial assumption that the various biblical documents are simply historical documents. They are, by far, the most well-attested documents of their time.
From these documents we see that a man, claiming to be God, lived, died, and was presumably resurrected. He also claimed to have founded a Church, "the pillar and foundation of truth," against which the gates of hell would not prevail.
An examination of history shows that the Catholic Church has been in existence for almost 2000 years, with an unbroken line of leaders and a body of non-contradictory teaching --an incomparable historic institution. These facts accord with Christ's prophecy regarding His Church, lending credence to His claim of divinity, and the claim of the Catholic Church to be the Church that He founded.
Moreover, countless public miracles are associated with this institution, in evidence of divine superintendence.
Therefore, this institution can be trusted to have written, preserved and canonized Scripture authoritatively.
And we can trust the Church to teach us authoritatively regarding Sacred Tradition.