True, Jesus did teach us to pray for God's holy spirit at Luke 11v13 B.
If the Bible is an 'incomplete resource' why didn't Jesus teach that?
Jesus taught Scripture is religious truth or religious fact.-John 17v17; Matt.4v4.
The Psalmist agrees at Psalm 119v105
The Bible is stating at 2nd Tim. [3vs16,17] that all of the Bible is from God.
How did the Ethiopian official 'search' for answers according to Acts 8v30,31?
How did the people of Acts [17v11] search or research but by examining the Scriptures each day to see if what they were hearing was found in Scripture.
1st Cor. [2v16] mentions being able to have the mind of Christ.
Where else would we find the mind of Christ except in Scripture?
If Timothy said that all the Bible is from God then it is wrong. There was no Bible at the time.
You seem to switch between Jewish Scripture ( that Jesus would have known and understood as a Jew) and the New Testament (Which he certainly did not know, as the contents were as yet unwritten and uncompiled.) He taught nothing about it at all.
Such scripture as we have is what the compilers selected from the available material at that time. Some they discarded as it did not support their understanding of the New Christianity.
Much had already been lost through Wear, death of the author. or because no copies of known works could be found. Some is incomplete because it was never finished.
Some was discarded because no known Apostolic link could be found. (one of the criteria for inclusion) Some was discarded because of Gnostic links (though Mark's work got through)
The Bible is not authoritative, it contains errors, it has omissions.
It contains at least some of Jesus teachings (there must have been a lot more that did not survive) Many of the Authors are not in fact, who they are ascribed to be.
Even after saying all this.... the Bible is still the most important Christian resourse that we can find...
Quotes from the Bible (such as you have given ) can not be proof of themselves or of the accuracy of the Bible itself. That is logically unsupportable.