I am proving you wrong. If the scripture be the sole source of Christian truth, then this fact better be right there in the scripture, black on white, inambiguous. It is not.
Why not just publicly claim up front and in all writings the notice that the Catholic church is the only true church, the only true interpreter of God's word, old and new covenants, whose word is law and whose authority is the voice of God Himself and anyone who departs from its doctrine is eternally damned to hellfire?
Why not? Of course the Catholic Church is the only true Church, established by Christ, His only mystical body and bride, outside of which there is no salvation. Christ has one body and one bride, and so there is one Church and one Church only, amen.
And your incredulous gasps are just your opinion.
Is this Vatican I or Vatican II teaching? I keep forgetting and get them mixed up.
You would think that if the Catholic church was started, and was destined to be the One True Church, the apostles would have written such clearly in the scriptures, wouldn't you?
But, at best, you have very laboriously interpreted references, and no appeal to either Old or New Testament customary treatment of the non-exclusivety of the scriptures in either testaments.
If your claim was as intact as you would have it be, clear as you would have it be, there would be no room for argument. But it isn't, and you have millions that argue against RCC claims. And continue to so argue.
God does not bless arrogance, and the RCC is anything but humble.
God bless you, and lead you to truth.