Replies

“Not a single Author, of any single Book of the Bible, ever foresaw that the entire “Bible” would ever exist.”

God is the single Author, and He of course knew and foresaw that all of the entire Bible would exist. He knows everything.

“The Bible has NO sense of itself, and never speaks of itself.”

Wow, so many verses to give in response to that. A few off of the top of my head:

“Thy word is a lamp unto my feet, and a light unto my path.”
(Psalm 119:105)

“All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:”
(2nd Timothy 3:16)

“This is the disciple which testifieth of these things, and wrote these things: and we know that his testimony is true.”
(John 21:24)

“And beginning at Moses and all the prophets, he (Jesus) expounded unto them in all the scriptures the things concerning himself.”
(Luke 24:27)

“And he (Jesus) came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read. And there was delivered unto him the book of the prophet Isaiah. And when he had opened the book, he found the place where it was written, ‘The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised, To preach the acceptable year of the Lord.’ And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him. And he began to say unto them, This day is this scripture fulfilled in your ears.
(Luke 4:16-21)

Scripture routinely testifies that it is the word of God. From Genesis to Revelation, constantly, by the prophets and the priests and the kings and the apostles, the various books of the Bible are declared to be the word of God, thus saith the LORD, etc.