For failure to consider context, that would be you...
I pointed directly towards how gnosticism was dealt with early on. They did not allude to things Christ did (or said) not part of the record. For whatever reason, that was ignored by yourself, with the focus of the exchange steered towards fill-in-the-blank word games (concerning what Christ MAY have said that wasn't recorded)
I recognize that as a camel's nose under the edge of the tent sort-of-thing, as did the one whom first responded to you here concerning it, along with another having taken pains to provide wider context.
When after that having been pointed out, have one in effect say "what nose?, what camel?" it's then plain enough from that display of incoherence, the rest of the conversation will be incoherent, for it will focus on everything BUT that camel.
We are not talking here about camels or noses. Quite simply, there are MANY things that Christ said and did that are not part of recorded Scripture. They were handed down by what we have come to know as the oral tradition from Peter and his apostles to his successors the Popes may of whom were the early Church Fathers and saints of the Church. This is the received tradition of Holy Scripture along with revelation that is the true deposit of the faith. There cannot be multiples truths. If that were so every street corner pastor in every FourSquare Church would claim to be to be teaching the Gospel of our Lord including Joel Osteen, Rev. Jeremiah Wright, the Mormons, the Church of Scientology...you get the point. This is why great thinkers, philosophers, scientists, essayists like GK Chesterton, including atheists and a former Chief Rabbi of Rome all converted to Catholicism. That the current Pope has been called the Theological Einstein of our times simply adds an exclamation point to all of this who has famously said that faith and reason are braided together to make for the compelling witness to Truth contained in the Catholic Credo. “The One True, Holy, Catholic, and Apostolic Church...” The Church for the ages where the gates of hell shall not prevail against Her.