Actually, FK, I know with utmost certainty that the New Testament (not all Scripture) is a result of the Holy Tradition.
I do understand that to you this may be as disappointing as it must have been to find out that Santa Klaus really did not exist or that in the real world he was a Saint, but that's what they call "growing pains."
In order for the New Testament to become compiled from existing writings the Church had to know what is orthodox and what is heretical. That knowledge did not exist in neatly packaged book called the New Testament.
The compilation of the New Testament served the purpose to eliminate any possibility of having heretical books used liturgically.
The fathers of the early Church had to be able to tell the difference between Gnostic lies that masqueraded as "gospels" from genuine Apostolic writings. They didn't have an instruction manual on how to tell the genuine from the false. The had to know.
Today, you know because you read the New Testament. But they didn't have one. They had many scrolls, hundreds of them in fact, that looked and sounded like "real" Gospels and Epistles, yet all but 27 of them turned out to be false.
That we have the New Testament today so you can than God who inspired the writers, and your "fallible men" of the Church who gathered the genuine books and compiled them into a book we know as the New Testament.
And here I thought it was God-breathed into men chosen by God and led by the Holy Spirit to be vessels of His perfect Word.
"All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness" -- 2 Timothy 3:16
"For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost." -- 2 Peter 1:21
Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual." -- 1 Corinthians 2:12-13"Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God.